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MW 3x1 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010063

GTIN/EAN: 5906301810629

5.00
Load capacity 0.21 kg / 2.10 N Magnetic Induction 342.82 mT / 3428 Gs
Diameter Ø
3 mm [±0,1 mm]
Height
1 mm [±0,1 mm]
Weight
0.05 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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0.1100 zł net / pcs

0.1353 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

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 - MW 3x1 / N38 - cylindrical magnet

Specification / characteristics - MW 3x1 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010063
GTIN/EAN 5906301810629
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 3 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 0.05 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.21 kg / 2.10 N
Magnetic Induction ~ ? 342.82 mT / 3428 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 3x1 / N38 - cylindrical 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

Technical simulation of the product - report

These information constitute the outcome of a engineering analysis. Values rely on models for the material Nd2Fe14B. Actual conditions might slightly differ. Please consider these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MW 3x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3422 Gs
342.2 mT
 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
 weak grip
1 mm 1521 Gs
152.1 mT
 0.04 kg / 0.09 lbs
41.5 g / 0.4 N
 weak grip
2 mm 585 Gs
58.5 mT
 0.01 kg / 0.01 lbs
6.1 g / 0.1 N
 weak grip
3 mm 260 Gs
26.0 mT
 0.00 kg / 0.00 lbs
1.2 g / 0.0 N
 weak grip
5 mm 76 Gs
7.6 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 weak grip
10 mm 12 Gs
1.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
15 mm 4 Gs
0.4 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
20 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
30 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
50 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
Pulling power weakens sharply with every mm of spacing. Keep in mind that even a microscopic distance (e.g., contamination, paint, rust) noticeably diminishes the holding power. Neodymiums work most effectively in perfect adhesion; air break drastically cuts the force. See how rapidly the parameters fall, when the magnet does not touch tightly to the steel surface. When designing the arrangement, eliminate redundant distances.

Table 2: Slippage hold (wall)
MW 3x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.04 kg / 0.09 lbs
42.0 g / 0.4 N
1 mm Stal (~0.2) 0.01 kg / 0.02 lbs
8.0 g / 0.1 N
2 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
3 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The following data indicates the estimated weight limit required to start the downward movement of the magnet vertically on a upright metal surface (assuming standard friction coefficient). This parameter depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 3x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.06 kg / 0.14 lbs
63.0 g / 0.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.04 kg / 0.09 lbs
42.0 g / 0.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.02 kg / 0.05 lbs
21.0 g / 0.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.11 kg / 0.23 lbs
105.0 g / 1.0 N
When placing a holder on a upright surface (e.g., a car body), it will maintain barely about 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient cause that magnets slip faster than they detach. Planning a vertical fastening? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will slide down under a significantly smaller cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 3x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.02 kg / 0.05 lbs
21.0 g / 0.2 N
1 mm
25%
 0.05 kg / 0.12 lbs
52.5 g / 0.5 N
2 mm
50%
 0.11 kg / 0.23 lbs
105.0 g / 1.0 N
3 mm
75%
 0.16 kg / 0.35 lbs
157.5 g / 1.5 N
5 mm
100%
 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
10 mm
100%
 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
11 mm
100%
 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
12 mm
100%
 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
A thin metal plate is not enough to take in the entire magnetic field, which wastes potential of the magnet. If you install a neodymium to a thin surface, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you need a suitably thick backing of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the holder holds weaker. We advise picking the steel dimension from these parameters.

Table 5: Working in heat (material behavior) - power drop
MW 3x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.21 kg / 0.46 lbs
210.0 g / 2.1 N
 OK
40 °C -2.2% 0.21 kg / 0.45 lbs
205.4 g / 2.0 N
 OK
60 °C -4.4% 0.20 kg / 0.44 lbs
200.8 g / 2.0 N
80 °C -6.6% 0.20 kg / 0.43 lbs
196.1 g / 1.9 N
100 °C -28.8% 0.15 kg / 0.33 lbs
149.5 g / 1.5 N
Standard neodymium magnets lose strength above the temperature limit. Watch out for overheating – excessive heat can irreversibly demagnetize this magnet. With increasing heat, the magnet's force briefly lowers. Avoid using this magnet close to heaters exceeding its working range. Exceeding the critical threshold will result in permanent loss of magnetic properties.
*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low Pc) risk losing magnetic properties at lower temperatures than long magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 3x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.51 kg / 1.12 lbs
4 928 Gs
0.08 kg / 0.17 lbs
77 g / 0.8 N
 N/A
1 mm 0.26 kg / 0.56 lbs
4 847 Gs
0.04 kg / 0.08 lbs
38 g / 0.4 N
 0.23 kg / 0.51 lbs
~0 Gs
2 mm 0.10 kg / 0.22 lbs
3 042 Gs
0.02 kg / 0.03 lbs
15 g / 0.1 N
 0.09 kg / 0.20 lbs
~0 Gs
3 mm 0.04 kg / 0.08 lbs
1 865 Gs
0.01 kg / 0.01 lbs
6 g / 0.1 N
 0.03 kg / 0.08 lbs
~0 Gs
5 mm 0.01 kg / 0.01 lbs
764 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
10 mm 0.00 kg / 0.00 lbs
153 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
23 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
2 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
1 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
1 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
0 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
0 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
0 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets interact from a significantly greater distance than a magnet and steel setup. The connection of two magnets creates a more powerful interaction and a larger range of performance. Want to build a strong closure? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is extreme. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Estimates refer to shear force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MW 3x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 1.5 cm
Hearing aid 10 Gs (1.0 mT) 1.5 cm
Timepiece 20 Gs (2.0 mT) 1.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.0 cm
Remote 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Powerful magnet radiation is a real danger to IT equipment and pacemakers. These NdFeB products generate a field that destroys function of sensitive medical devices. Be aware: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MW 3x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 26.23 km/h
(7.29 m/s)
 0.00 J
30 mm 26.24 km/h
(7.29 m/s)
 0.00 J
50 mm 26.24 km/h
(7.29 m/s)
 0.00 J
100 mm 26.24 km/h
(7.29 m/s)
 0.00 J
NdFeB products are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
MW 3x1 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Pc)
MW 3x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 257 Mx 2.6 µWb
Pc Coefficient 0.44 Low (Flat)
Flux value emitted by the pole surface. Key data in coil applications and motors. Pc value determines the working geometry.

Table 11: Physics of underwater searching
MW 3x1 / N38

Environment Effective steel pull Effect
Air (land) 0.21 kg Standard
Water (riverbed) 0.24 kg
(+0.03 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Shear force

*Warning: On a vertical wall, the magnet retains just a fraction of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Thermal stability

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44

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.

Engineering data and GPSR

Chemical composition

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: 010063-2026
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It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 2.10 N with a weight of only 0.05 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø3x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø3x1 mm, which, at a weight of 0.05 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.21 kg (force ~2.10 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 1 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths and weaknesses of rare earth magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • Their power is durable, and after around 10 years it drops only by ~1% (according to research),
  • They do not lose their magnetic properties even under close interference source,
  • In other words, due to the aesthetic finish of nickel, the element gains a professional look,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to modularity in forming and the capacity to customize to individual projects,
  • Universal use in modern industrial fields – they are commonly used in mass storage devices, electromotive mechanisms, medical devices, also other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in small systems

Disadvantages

Characteristics of disadvantages of neodymium magnets: tips and applications.
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
  • Due to limitations in producing nuts and complex forms in magnets, we recommend using cover - magnetic holder.
  • Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

The load parameter shown refers to the limit force, recorded under ideal test conditions, namely:
  • with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • possessing a massiveness of at least 10 mm to ensure full flux closure
  • with an ideally smooth contact surface
  • with direct contact (no paint)
  • for force applied at a right angle (pull-off, not shear)
  • in stable room temperature

Key elements affecting lifting force

During everyday use, the real power results from many variables, ranked from crucial:
  • Distance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Load vector – maximum parameter is reached only during perpendicular pulling. The shear force of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Plate thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be escaped to the other side.
  • Material type – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
  • Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the load capacity.

Warnings
Warning for heart patients

Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Demagnetization risk

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Serious injuries

Mind your fingers. Two powerful magnets will snap together immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Choking Hazard

Neodymium magnets are not toys. Swallowing a few magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.

Skin irritation risks

Studies show that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent direct skin contact or opt for coated magnets.

Cards and drives

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Machining danger

Dust generated during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.

Risk of cracking

Neodymium magnets are ceramic materials, which means they are prone to chipping. Impact of two magnets will cause them breaking into shards.

Safe operation

Handle magnets consciously. Their powerful strength can shock even experienced users. Stay alert and respect their force.

GPS Danger

Note: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, tablet, and GPS.

Warning! Details about risks in the article: Safety of working with magnets.