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MPL 20x10x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020588

GTIN/EAN: 5906301815815

Load capacity 8.31 kg / 81.49 N Magnetic Induction 492.56 mT / 4926 Gs
length
20 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
15 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

check technical specifications »

6.85 zł net / pcs

8.43 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What pull rating should I choose for a workshop block magnet?
A catalogue pull rating is measured under stated test conditions. A painted or thin steel surface, a gap or a load acting along the surface can reduce the practical grip. Choose a margin based on the actual installation and read the product card.
Are block neodymium magnets available in more durable versions?
Sintered NdFeB is brittle and can corrode if its coating is damaged. Check the coating and operating-temperature limit of the selected product. A housing may help protect a magnet in an application exposed to impacts.
How should I choose block magnets for mounting a structure?
First check the steel grade and thickness, then any gap created by paint or dirt, and finally the direction of the applied load. Compare these conditions with the specifications of the selected magnet; do not rely on grade alone.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator
Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical specification of the product - MPL 20x10x10 / N38 - lamellar magnet

Specification / characteristics - MPL 20x10x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020588
GTIN/EAN 5906301815815
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
length 20 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 15 g
Magnetization Direction ↑ axial
Load capacity ~ ? 8.31 kg / 81.49 N
Magnetic Induction ~ ? 492.56 mT / 4926 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x10x10 / N38 - lamellar magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Engineering simulation of the product - report

The following values are the result of a engineering analysis. Results were calculated on algorithms for the class Nd2Fe14B. Operational conditions may differ. Please consider these calculations as a reference point for designers.

Table 1: Static pull force (force vs gap) - characteristics
MPL 20x10x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4923 Gs
492.3 mT
 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
 strong
1 mm 4215 Gs
421.5 mT
 6.09 kg / 13.43 LBS
6091.8 g / 59.8 N
 strong
2 mm 3535 Gs
353.5 mT
 4.28 kg / 9.45 LBS
4284.6 g / 42.0 N
 strong
3 mm 2933 Gs
293.3 mT
 2.95 kg / 6.50 LBS
2949.6 g / 28.9 N
 strong
5 mm 2007 Gs
200.7 mT
 1.38 kg / 3.04 LBS
1380.7 g / 13.5 N
 low risk
10 mm 841 Gs
84.1 mT
 0.24 kg / 0.53 LBS
242.5 g / 2.4 N
 low risk
15 mm 408 Gs
40.8 mT
 0.06 kg / 0.13 LBS
57.1 g / 0.6 N
 low risk
20 mm 224 Gs
22.4 mT
 0.02 kg / 0.04 LBS
17.2 g / 0.2 N
 low risk
30 mm 87 Gs
8.7 mT
 0.00 kg / 0.01 LBS
2.6 g / 0.0 N
 low risk
50 mm 23 Gs
2.3 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 low risk
Grip strength drops sharply per each millimeter of spacing. Remember that even the smallest gap (e.g., contamination, varnish, dust) significantly reduces the pull force. Magnetic products hold most effectively at the point of direct contact; distance kills the force. See how flashily the pull force fall, when the magnet does not adhere flatly to the steel surface. When planning the assembly, discard additional spacers.

Table 2: Slippage hold (wall)
MPL 20x10x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 1.66 kg / 3.66 LBS
1662.0 g / 16.3 N
1 mm Raw steel (µ ≈ 0.2) 1.22 kg / 2.69 LBS
1218.0 g / 11.9 N
2 mm Raw steel (µ ≈ 0.2) 0.86 kg / 1.89 LBS
856.0 g / 8.4 N
3 mm Raw steel (µ ≈ 0.2) 0.59 kg / 1.30 LBS
590.0 g / 5.8 N
5 mm Raw steel (µ ≈ 0.2) 0.28 kg / 0.61 LBS
276.0 g / 2.7 N
10 mm Raw steel (µ ≈ 0.2) 0.05 kg / 0.11 LBS
48.0 g / 0.5 N
15 mm Raw steel (µ ≈ 0.2) 0.01 kg / 0.03 LBS
12.0 g / 0.1 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
30 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below indicates the theoretical holding capacity sufficient to cause the shifting of the magnet vertically along a upright steel wall (assuming standard friction coefficient). This value depends on the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 20x10x10 / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
2.49 kg / 5.50 LBS
2493.0 g / 24.5 N
Painted steel (standard)
µ = 0.2 20% of nominal force
1.66 kg / 3.66 LBS
1662.0 g / 16.3 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.83 kg / 1.83 LBS
831.0 g / 8.2 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
4.16 kg / 9.16 LBS
4155.0 g / 40.8 N
When mounting a element on a upright wall (e.g., a fridge), it you can count on barely approx. 1/5 of its nominal power. Gravitational force and a low friction coefficient cause that holders move down easier than they detach. Want to create a wall mount? Remember that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the holder will give way down under a much lighter weight. Application of an anti-slip coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - power losses
MPL 20x10x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.83 kg / 1.83 LBS
831.0 g / 8.2 N
1 mm
25%
 2.08 kg / 4.58 LBS
2077.5 g / 20.4 N
2 mm
50%
 4.16 kg / 9.16 LBS
4155.0 g / 40.8 N
3 mm
75%
 6.23 kg / 13.74 LBS
6232.5 g / 61.1 N
5 mm
100%
 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
10 mm
100%
 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
11 mm
100%
 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
12 mm
100%
 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
A thin sheet is not enough to conduct the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a thin surface, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this magnet's potential, you need a suitably thick element of steel. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MPL 20x10x10 / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 8.31 kg / 18.32 LBS
8310.0 g / 81.5 N
 Estimate
40 °C -4.4% 7.95 kg / 17.52 LBS
7948.4 g / 78.0 N
 Estimate
60 °C -8.6% 7.59 kg / 16.74 LBS
7594.8 g / 74.5 N
 Estimate
80 °C -12.8% 7.25 kg / 15.98 LBS
7249.3 g / 71.1 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 20x10x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 29.88 kg / 65.88 LBS
5 763 Gs
4.48 kg / 9.88 LBS
4482 g / 44.0 N
 N/A
1 mm 25.77 kg / 56.82 LBS
9 144 Gs
3.87 kg / 8.52 LBS
3866 g / 37.9 N
 23.20 kg / 51.14 LBS
~0 Gs
2 mm 21.91 kg / 48.29 LBS
8 430 Gs
3.29 kg / 7.24 LBS
3286 g / 32.2 N
 19.71 kg / 43.46 LBS
~0 Gs
3 mm 18.44 kg / 40.65 LBS
7 734 Gs
2.77 kg / 6.10 LBS
2766 g / 27.1 N
 16.60 kg / 36.59 LBS
~0 Gs
5 mm 12.80 kg / 28.23 LBS
6 445 Gs
1.92 kg / 4.23 LBS
1921 g / 18.8 N
 11.52 kg / 25.41 LBS
~0 Gs
10 mm 4.96 kg / 10.95 LBS
4 013 Gs
0.74 kg / 1.64 LBS
745 g / 7.3 N
 4.47 kg / 9.85 LBS
~0 Gs
20 mm 0.87 kg / 1.92 LBS
1 682 Gs
0.13 kg / 0.29 LBS
131 g / 1.3 N
 0.78 kg / 1.73 LBS
~0 Gs
50 mm 0.02 kg / 0.05 LBS
269 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
 0.02 kg / 0.04 LBS
~0 Gs
60 mm 0.01 kg / 0.02 LBS
173 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.01 LBS
118 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
83 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
61 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
46 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums interact from a significantly greater distance than a neodymium and metal setup. The setup of two magnets creates a more powerful interaction and a further horizon of operation. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the impact force is massive. The repulsion force is marginally weaker than the connection force, but still significant.
*Flux density in repulsion mode is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Note: Calculations demonstrate sliding force of two same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Axial field levels — not safety zones
MPL 20x10x10 / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 9.0 cm
< 10 Gs < 1.0 mT 7.0 cm
< 20 Gs < 2.0 mT 5.5 cm
< 40 Gs < 4.0 mT 4.5 cm
< 50 Gs < 5.0 mT 4.0 cm
< 400 Gs < 40.0 mT 2.0 cm
< 600 Gs < 60.0 mT 1.5 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Collisions (cracking risk) - warning
MPL 20x10x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 19.85 km/h
(5.51 m/s)
 0.23 J
30 mm 20.22 km/h
(5.62 m/s)
 0.24 J
50 mm 20.22 km/h
(5.62 m/s)
 0.24 J
100 mm 20.22 km/h
(5.62 m/s)
 0.24 J
NdFeB products are very brittle – a collision with steel causes immediate chipping. Pay attention to connection velocity – a magnet released freely speeds with massive force. Kinetic force can destroy the magnet or injury to skin. Be sure to control the product during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Corrosion resistance
MPL 20x10x10 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Pc)
MPL 20x10x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 758 Mx 97.6 µWb
Pc Coefficient 0.68 High (Stable)
Flux value passing through the magnet pole. Essential parameter for generator designers and motors. Pc value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 20x10x10 / N38

Environment Effective steel pull Effect
Air (land) 8.31 kg Standard
Water (riverbed) 9.51 kg
(+1.20 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Thermal stability

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.68

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

Elemental analysis

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Ecology and recycling (GPSR)

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020588-2026
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This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 20x10x10 mm and a weight of 15 g, guarantees the highest quality connection. This rectangular block with a force of 81.49 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
The key to success is sliding the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 20x10x10 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
They constitute a key element in the production of wind generators and material handling systems. They work great as fasteners under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 20x10x10 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 20 mm (length), 10 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 20x10x10 mm and a self-weight of 15 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (according to literature),
  • Neodymium magnets are extremely resistant to demagnetization caused by magnetic disturbances,
  • By covering with a smooth layer of nickel, the element presents an proper look,
  • Magnets are distinguished by excellent magnetic induction on the active area,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to versatility in forming and the ability to adapt to specific needs,
  • Key role in innovative solutions – they serve a role in HDD drives, brushless drives, precision medical tools, also technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets: tips and applications.
  • At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • We recommend cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complex forms.
  • Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these products can disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Detachment force of the magnet in optimal conditions – what affects it?

Magnet power was determined for the most favorable conditions, including:
  • using a sheet made of mild steel, acting as a circuit closing element
  • with a cross-section of at least 10 mm
  • with a surface free of scratches
  • with total lack of distance (without impurities)
  • during pulling in a direction perpendicular to the mounting surface
  • in temp. approx. 20°C

What influences lifting capacity in practice

It is worth knowing that the application force may be lower depending on elements below, starting with the most relevant:
  • Clearance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Steel type – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
  • Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets
Power loss in heat

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Swallowing risk

Absolutely keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are life-threatening.

Sensitization to coating

A percentage of the population have a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling might lead to dermatitis. It is best to use protective gloves.

Caution required

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Fire risk

Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this may cause fire.

Protective goggles

Beware of splinters. Magnets can explode upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

ICD Warning

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Impact on smartphones

Navigation devices and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Serious injuries

Big blocks can break fingers in a fraction of a second. Never place your hand between two strong magnets.

Electronic hazard

Avoid bringing magnets near a wallet, laptop, or TV. The magnetism can destroy these devices and erase data from cards.

Security! Need more info? Check our post: Are neodymium magnets dangerous?