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MPL 50x50x25 / N38 - lamellar magnet

lamellar magnet

Catalog no 020168

GTIN/EAN: 5906301811749

length

50 mm [±0,1 mm]

Width

50 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

468.75 g

Magnetization Direction

↑ axial

Load capacity

90.53 kg / 888.15 N

Magnetic Induction

413.25 mT / 4133 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

159.90 ZŁ with VAT / pcs + price for transport

130.00 ZŁ net + 23% VAT / pcs

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Physical properties - MPL 50x50x25 / N38 - lamellar magnet

Specification / characteristics - MPL 50x50x25 / N38 - lamellar magnet

properties
properties values
Cat. no. 020168
GTIN/EAN 5906301811749
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 50 mm [±0,1 mm]
Width 50 mm [±0,1 mm]
Height 25 mm [±0,1 mm]
Weight 468.75 g
Magnetization Direction ↑ axial
Load capacity ~ ? 90.53 kg / 888.15 N
Magnetic Induction ~ ? 413.25 mT / 4133 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x50x25 / N38 - lamellar magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. 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 312 - 380 °C
Curie Temperature TF 593 - 716 °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 - data

The following values constitute the result of a mathematical simulation. Results rely on algorithms for the material Nd2Fe14B. Actual conditions might slightly differ. Use these calculations as a reference point when designing systems.

Table 1: Static pull force (pull vs distance) - power drop
MPL 50x50x25 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4132 Gs
413.2 mT
 90.53 kg / 199.58 lbs
90530.0 g / 888.1 N
 dangerous!
1 mm 3999 Gs
399.9 mT
 84.79 kg / 186.94 lbs
84794.0 g / 831.8 N
 dangerous!
2 mm 3861 Gs
386.1 mT
 79.04 kg / 174.25 lbs
79038.6 g / 775.4 N
 dangerous!
3 mm 3720 Gs
372.0 mT
 73.38 kg / 161.78 lbs
73381.8 g / 719.9 N
 dangerous!
5 mm 3435 Gs
343.5 mT
 62.56 kg / 137.93 lbs
62564.2 g / 613.8 N
 dangerous!
10 mm 2742 Gs
274.2 mT
 39.87 kg / 87.90 lbs
39868.7 g / 391.1 N
 dangerous!
15 mm 2137 Gs
213.7 mT
 24.21 kg / 53.37 lbs
24210.4 g / 237.5 N
 dangerous!
20 mm 1649 Gs
164.9 mT
 14.41 kg / 31.77 lbs
14409.9 g / 141.4 N
 dangerous!
30 mm 988 Gs
98.8 mT
 5.17 kg / 11.40 lbs
5170.9 g / 50.7 N
 warning
50 mm 399 Gs
39.9 mT
 0.85 kg / 1.86 lbs
845.8 g / 8.3 N
 weak grip
Grip strength weakens drastically with every mm of spacing. Remember that every additional insulation layer (e.g., contamination, paint, veneer) strongly weakens the grip. Magnets work strongest at the point of direct contact; gap drastically cuts the force. Observe how rapidly the load capacity plummet, when the product does not touch flatly to the steel surface. When calculating the arrangement, discard redundant distances.

Table 2: Vertical capacity (vertical surface)
MPL 50x50x25 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 18.11 kg / 39.92 lbs
18106.0 g / 177.6 N
1 mm Stal (~0.2) 16.96 kg / 37.39 lbs
16958.0 g / 166.4 N
2 mm Stal (~0.2) 15.81 kg / 34.85 lbs
15808.0 g / 155.1 N
3 mm Stal (~0.2) 14.68 kg / 32.36 lbs
14676.0 g / 144.0 N
5 mm Stal (~0.2) 12.51 kg / 27.58 lbs
12512.0 g / 122.7 N
10 mm Stal (~0.2) 7.97 kg / 17.58 lbs
7974.0 g / 78.2 N
15 mm Stal (~0.2) 4.84 kg / 10.67 lbs
4842.0 g / 47.5 N
20 mm Stal (~0.2) 2.88 kg / 6.35 lbs
2882.0 g / 28.3 N
30 mm Stal (~0.2) 1.03 kg / 2.28 lbs
1034.0 g / 10.1 N
50 mm Stal (~0.2) 0.17 kg / 0.37 lbs
170.0 g / 1.7 N
The following data shows the estimated holding capacity needed to start the sliding of the magnet vertically against a upright metal surface (assuming standard friction). This value is a function of the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 50x50x25 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
27.16 kg / 59.88 lbs
27159.0 g / 266.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
18.11 kg / 39.92 lbs
18106.0 g / 177.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
9.05 kg / 19.96 lbs
9053.0 g / 88.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
45.27 kg / 99.79 lbs
45265.0 g / 444.0 N
When placing a magnet on a vertical plane (e.g., a fridge), it will only hold only about 1/5 of its nominal power. Gravity as well as a weak degree of grip cause that holders slip faster than they pop off the substrate. Want to create a wall mount? Remember that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the element will give way down under a significantly smaller cargo. Utilizing a rubberized layer can drastically improve the result.

Table 4: Steel thickness (saturation) - power losses
MPL 50x50x25 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 3.02 kg / 6.65 lbs
3017.7 g / 29.6 N
1 mm
8%
 7.54 kg / 16.63 lbs
7544.2 g / 74.0 N
2 mm
17%
 15.09 kg / 33.26 lbs
15088.3 g / 148.0 N
3 mm
25%
 22.63 kg / 49.90 lbs
22632.5 g / 222.0 N
5 mm
42%
 37.72 kg / 83.16 lbs
37720.8 g / 370.0 N
10 mm
83%
 75.44 kg / 166.32 lbs
75441.7 g / 740.1 N
11 mm
92%
 82.99 kg / 182.95 lbs
82985.8 g / 814.1 N
12 mm
100%
 90.53 kg / 199.58 lbs
90530.0 g / 888.1 N
A thin sheet is incapable of take in the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a thin surface, the field will pass right through and the attraction force will be weaker. To squeeze 100% of this magnet's power, you need a suitably thick piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MPL 50x50x25 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 90.53 kg / 199.58 lbs
90530.0 g / 888.1 N
 OK
40 °C -2.2% 88.54 kg / 195.19 lbs
88538.3 g / 868.6 N
 OK
60 °C -4.4% 86.55 kg / 190.80 lbs
86546.7 g / 849.0 N
80 °C -6.6% 84.56 kg / 186.41 lbs
84555.0 g / 829.5 N
100 °C -28.8% 64.46 kg / 142.10 lbs
64457.4 g / 632.3 N
Ordinary NdFeB products lose parameters past the thermal threshold. Protect against heat – high temperature can permanently destroy this product. With increasing heat, the magnet's power momentarily lowers. Refrain from using this product close to heaters exceeding its safe range. Ignoring the limit will result in destruction of magnetism.
*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures compared to rod magnets. Warning indicator in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 50x50x25 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 263.15 kg / 580.14 lbs
5 403 Gs
39.47 kg / 87.02 lbs
39472 g / 387.2 N
 N/A
1 mm 254.89 kg / 561.94 lbs
8 133 Gs
38.23 kg / 84.29 lbs
38234 g / 375.1 N
 229.40 kg / 505.75 lbs
~0 Gs
2 mm 246.47 kg / 543.38 lbs
7 998 Gs
36.97 kg / 81.51 lbs
36971 g / 362.7 N
 221.83 kg / 489.04 lbs
~0 Gs
3 mm 238.08 kg / 524.88 lbs
7 861 Gs
35.71 kg / 78.73 lbs
35713 g / 350.3 N
 214.28 kg / 472.40 lbs
~0 Gs
5 mm 221.48 kg / 488.27 lbs
7 582 Gs
33.22 kg / 73.24 lbs
33222 g / 325.9 N
 199.33 kg / 439.45 lbs
~0 Gs
10 mm 181.86 kg / 400.93 lbs
6 870 Gs
27.28 kg / 60.14 lbs
27279 g / 267.6 N
 163.67 kg / 360.83 lbs
~0 Gs
20 mm 115.89 kg / 255.49 lbs
5 484 Gs
17.38 kg / 38.32 lbs
17383 g / 170.5 N
 104.30 kg / 229.94 lbs
~0 Gs
50 mm 24.93 kg / 54.97 lbs
2 544 Gs
3.74 kg / 8.25 lbs
3740 g / 36.7 N
 22.44 kg / 49.47 lbs
~0 Gs
60 mm 15.03 kg / 33.14 lbs
1 975 Gs
2.25 kg / 4.97 lbs
2255 g / 22.1 N
 13.53 kg / 29.82 lbs
~0 Gs
70 mm 9.24 kg / 20.37 lbs
1 548 Gs
1.39 kg / 3.05 lbs
1386 g / 13.6 N
 8.31 kg / 18.33 lbs
~0 Gs
80 mm 5.81 kg / 12.80 lbs
1 228 Gs
0.87 kg / 1.92 lbs
871 g / 8.5 N
 5.23 kg / 11.52 lbs
~0 Gs
90 mm 3.74 kg / 8.24 lbs
985 Gs
0.56 kg / 1.24 lbs
560 g / 5.5 N
 3.36 kg / 7.41 lbs
~0 Gs
100 mm 2.46 kg / 5.42 lbs
799 Gs
0.37 kg / 0.81 lbs
369 g / 3.6 N
 2.21 kg / 4.88 lbs
~0 Gs
Two magnetic products attract each other from a wider radius than a magnet and steel setup. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of performance. Designing a strong closure? Apply two magnets instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the impact force is huge. The levitation is slightly lower than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the midpoint between the magnets (due to field cancellation).
* Calculations show sliding force of two matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MPL 50x50x25 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 28.0 cm
Hearing aid 10 Gs (1.0 mT) 22.0 cm
Timepiece 20 Gs (2.0 mT) 17.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 13.5 cm
Car key 50 Gs (5.0 mT) 12.5 cm
Payment card 400 Gs (40.0 mT) 5.0 cm
HDD hard drive 600 Gs (60.0 mT) 4.5 cm
A strong magnetic field is a large risk to IT equipment and medical implants. These magnets generate a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation passes through tissues and glass. Special caution must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MPL 50x50x25 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 17.45 km/h
(4.85 m/s)
 5.51 J
30 mm 25.13 km/h
(6.98 m/s)
 11.42 J
50 mm 31.52 km/h
(8.76 m/s)
 17.97 J
100 mm 44.33 km/h
(12.31 m/s)
 35.54 J
Magnetic elements are prone to chipping – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Use safety goggles when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 50x50x25 / 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 (Flux)
MPL 50x50x25 / N38

Parameter Value SI Unit / Description
Magnetic Flux 105 093 Mx 1050.9 µWb
Pc Coefficient 0.54 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter for generator designers as well as sensors. The Pc coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 50x50x25 / N38

Environment Effective steel pull Effect
Air (land) 90.53 kg Standard
Water (riverbed) 103.66 kg
(+13.13 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Vertical hold

*Caution: On a vertical wall, the magnet holds only approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) significantly weakens the holding force.

3. Heat tolerance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.54

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
Material specification
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%
Environmental data
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: 020168-2026
Measurement Calculator
Magnet pull force
Magnetic Induction
Input your value in a single field to see the conversion in the other units immediately.

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MPL 20x20x20 / N38 - lamellar magnet
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MPL 20x20x20 / N38 - lamellar magnet

33.21 ZŁ brutto / pcs
Model MPL 50x50x25 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 90.53 kg), this product is available immediately from our warehouse in Poland. 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. Watch your fingers! Magnets with a force of 90.53 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 50x50x25 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 90.53 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 50x50x25 / N38, it is best to use strong epoxy glues (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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
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: 50 mm (length), 50 mm (width), and 25 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 90.53 kg (force ~888.15 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of neodymium magnets.

Advantages

Apart from their strong power, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
  • Magnets perfectly protect themselves against demagnetization caused by ambient magnetic noise,
  • The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
  • The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
  • Thanks to modularity in constructing and the capacity to adapt to complex applications,
  • Fundamental importance in modern industrial fields – they are used in HDD drives, brushless drives, precision medical tools, and industrial machines.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:
  • At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength 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
  • They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing nuts and complicated forms in magnets, we recommend using cover - magnetic holder.
  • Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small components of these products can complicate diagnosis 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

Lifting parameters

Maximum lifting capacity of the magnet – what contributes to it?

Information about lifting capacity was determined for optimal configuration, assuming:
  • using a base made of high-permeability steel, functioning as a magnetic yoke
  • with a cross-section of at least 10 mm
  • with an ideally smooth touching surface
  • under conditions of ideal adhesion (metal-to-metal)
  • under axial force vector (90-degree angle)
  • at ambient temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

It is worth knowing that the magnet holding may be lower subject to the following factors, starting with the most relevant:
  • Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
  • Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
  • Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with NdFeB magnets
Do not drill into magnets

Powder created during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.

Precision electronics

A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Keep magnets near a device to prevent damaging the sensors.

Do not overheat magnets

Monitor thermal conditions. Exposing the magnet to high heat will destroy its properties and pulling force.

ICD Warning

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Cards and drives

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Danger to the youngest

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

Caution required

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Eye protection

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Warning for allergy sufferers

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, cease handling magnets and use protective gear.

Physical harm

Big blocks can crush fingers instantly. Under no circumstances place your hand between two strong magnets.

Danger! Want to know more? Check our post: Are neodymium magnets dangerous?