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MW 18x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010401

GTIN/EAN: 5906301811107

5.00

Diameter Ø

18 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

19.09 g

Magnetization Direction

↑ axial

Load capacity

10.76 kg / 105.51 N

Magnetic Induction

460.54 mT / 4605 Gs

Coating

[NiCuNi] Nickel

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7.82 ZŁ with VAT / pcs + price for transport

6.36 ZŁ net + 23% VAT / pcs

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Technical - MW 18x10 / N38 - cylindrical magnet

Specification / characteristics - MW 18x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010401
GTIN/EAN 5906301811107
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 18 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 19.09 g
Magnetization Direction ↑ axial
Load capacity ~ ? 10.76 kg / 105.51 N
Magnetic Induction ~ ? 460.54 mT / 4605 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 18x10 / N38 - cylindrical 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

Physical simulation of the assembly - report

The following data constitute the result of a mathematical calculation. Values are based on models for the class Nd2Fe14B. Operational parameters might slightly differ from theoretical values. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - interaction chart
MW 18x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4604 Gs
460.4 mT
 10.76 kg / 23.72 LBS
10760.0 g / 105.6 N
 dangerous!
1 mm 4114 Gs
411.4 mT
 8.59 kg / 18.94 LBS
8592.4 g / 84.3 N
 warning
2 mm 3615 Gs
361.5 mT
 6.64 kg / 14.63 LBS
6635.0 g / 65.1 N
 warning
3 mm 3137 Gs
313.7 mT
 5.00 kg / 11.01 LBS
4996.2 g / 49.0 N
 warning
5 mm 2305 Gs
230.5 mT
 2.70 kg / 5.95 LBS
2698.6 g / 26.5 N
 warning
10 mm 1045 Gs
104.5 mT
 0.55 kg / 1.22 LBS
555.0 g / 5.4 N
 low risk
15 mm 517 Gs
51.7 mT
 0.14 kg / 0.30 LBS
135.7 g / 1.3 N
 low risk
20 mm 285 Gs
28.5 mT
 0.04 kg / 0.09 LBS
41.1 g / 0.4 N
 low risk
30 mm 110 Gs
11.0 mT
 0.01 kg / 0.01 LBS
6.2 g / 0.1 N
 low risk
50 mm 29 Gs
2.9 mT
 0.00 kg / 0.00 LBS
0.4 g / 0.0 N
 low risk
Magnetic force drops sharply per each millimeter of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, rust) significantly weakens the grip. Magnets work most effectively at the point of direct contact; gap weakens the force. See how quickly the parameters plummet, when the product does not adhere flatly to the metal substrate. When planning the mounting, avoid unnecessary gaps.

Table 2: Slippage hold (vertical surface)
MW 18x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.15 kg / 4.74 LBS
2152.0 g / 21.1 N
1 mm Stal (~0.2) 1.72 kg / 3.79 LBS
1718.0 g / 16.9 N
2 mm Stal (~0.2) 1.33 kg / 2.93 LBS
1328.0 g / 13.0 N
3 mm Stal (~0.2) 1.00 kg / 2.20 LBS
1000.0 g / 9.8 N
5 mm Stal (~0.2) 0.54 kg / 1.19 LBS
540.0 g / 5.3 N
10 mm Stal (~0.2) 0.11 kg / 0.24 LBS
110.0 g / 1.1 N
15 mm Stal (~0.2) 0.03 kg / 0.06 LBS
28.0 g / 0.3 N
20 mm Stal (~0.2) 0.01 kg / 0.02 LBS
8.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data presents the approximate force sufficient to start the sliding of the magnet downwards on a vertical metal surface (assuming standard friction coefficient). The holding force depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 18x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.23 kg / 7.12 LBS
3228.0 g / 31.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.15 kg / 4.74 LBS
2152.0 g / 21.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.08 kg / 2.37 LBS
1076.0 g / 10.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.38 kg / 11.86 LBS
5380.0 g / 52.8 N
When placing a element on a vertical wall (e.g., a car body), it will only hold only about 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip influence the fact that magnets slide down faster than they detach. Designing a hanger? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will give way down under a significantly smaller cargo. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 18x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.54 kg / 1.19 LBS
538.0 g / 5.3 N
1 mm
13%
 1.35 kg / 2.97 LBS
1345.0 g / 13.2 N
2 mm
25%
 2.69 kg / 5.93 LBS
2690.0 g / 26.4 N
3 mm
38%
 4.04 kg / 8.90 LBS
4035.0 g / 39.6 N
5 mm
63%
 6.73 kg / 14.83 LBS
6725.0 g / 66.0 N
10 mm
100%
 10.76 kg / 23.72 LBS
10760.0 g / 105.6 N
11 mm
100%
 10.76 kg / 23.72 LBS
10760.0 g / 105.6 N
12 mm
100%
 10.76 kg / 23.72 LBS
10760.0 g / 105.6 N
A thin metal plate is unable to take in the entire magnetic field, which wastes potential of the holder. If you attach a powerful product to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To achieve full efficiency of this neodymium's potential, you need a suitably thick piece of steel. The saturation effect causes that on delicate walls (e.g., car bodies), the product shows lower pull force. We recommend selecting the steel dimension based on the following data.

Table 5: Working in heat (stability) - thermal limit
MW 18x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 10.76 kg / 23.72 LBS
10760.0 g / 105.6 N
 OK
40 °C -2.2% 10.52 kg / 23.20 LBS
10523.3 g / 103.2 N
 OK
60 °C -4.4% 10.29 kg / 22.68 LBS
10286.6 g / 100.9 N
 OK
80 °C -6.6% 10.05 kg / 22.16 LBS
10049.8 g / 98.6 N
100 °C -28.8% 7.66 kg / 16.89 LBS
7661.1 g / 75.2 N
Ordinary NdFeB products irreversibly lose strength above the temperature limit. Watch out for overheating – high temperature can permanently damage this product. As the temperature rises, the magnet's force temporarily decreases. Avoid using this magnet close to heaters exceeding its working range. Exceeding the critical threshold will result in irreversible degradation of magnetism.
*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 18x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 33.25 kg / 73.30 LBS
5 648 Gs
4.99 kg / 10.99 LBS
4987 g / 48.9 N
 N/A
1 mm 29.87 kg / 65.85 LBS
8 727 Gs
4.48 kg / 9.88 LBS
4480 g / 44.0 N
 26.88 kg / 59.27 LBS
~0 Gs
2 mm 26.55 kg / 58.53 LBS
8 228 Gs
3.98 kg / 8.78 LBS
3983 g / 39.1 N
 23.90 kg / 52.68 LBS
~0 Gs
3 mm 23.41 kg / 51.62 LBS
7 727 Gs
3.51 kg / 7.74 LBS
3512 g / 34.5 N
 21.07 kg / 46.46 LBS
~0 Gs
5 mm 17.84 kg / 39.33 LBS
6 744 Gs
2.68 kg / 5.90 LBS
2676 g / 26.3 N
 16.06 kg / 35.40 LBS
~0 Gs
10 mm 8.34 kg / 18.38 LBS
4 611 Gs
1.25 kg / 2.76 LBS
1251 g / 12.3 N
 7.50 kg / 16.54 LBS
~0 Gs
20 mm 1.71 kg / 3.78 LBS
2 091 Gs
0.26 kg / 0.57 LBS
257 g / 2.5 N
 1.54 kg / 3.40 LBS
~0 Gs
50 mm 0.05 kg / 0.10 LBS
342 Gs
0.01 kg / 0.02 LBS
7 g / 0.1 N
 0.04 kg / 0.09 LBS
~0 Gs
60 mm 0.02 kg / 0.04 LBS
221 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
 0.02 kg / 0.04 LBS
~0 Gs
70 mm 0.01 kg / 0.02 LBS
150 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 / 0.01 LBS
106 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.01 LBS
78 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
59 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 much further distance than a magnet and sheet combination. The setup of two magnets produces a massive flux and a further horizon of performance. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the collision energy is huge. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Figures apply to sliding force of two same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - warnings
MW 18x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 9.5 cm
Hearing aid 10 Gs (1.0 mT) 7.5 cm
Mechanical watch 20 Gs (2.0 mT) 6.0 cm
Mobile device 40 Gs (4.0 mT) 4.5 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Powerful magnet radiation poses a serious hazard to IT equipment as well as medical implants. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field passes through tissues and plastic. Special caution must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MW 18x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.70 km/h
(6.86 m/s)
 0.45 J
30 mm 41.49 km/h
(11.52 m/s)
 1.27 J
50 mm 53.54 km/h
(14.87 m/s)
 2.11 J
100 mm 75.72 km/h
(21.03 m/s)
 4.22 J
Neodymium magnets are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Coating parameters (durability)
MW 18x10 / 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)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Pc)
MW 18x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 11 828 Mx 118.3 µWb
Pc Coefficient 0.63 High (Stable)
Flux value emitted by the magnet pole. Essential parameter in coil applications as well as sensors. The Pc coefficient defines the working geometry.

Table 11: Submerged application
MW 18x10 / N38

Environment Effective steel pull Effect
Air (land) 10.76 kg Standard
Water (riverbed) 12.32 kg
(+1.56 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.
1. Sliding resistance

*Warning: On a vertical wall, the magnet retains merely a fraction of its perpendicular strength.

2. Plate thickness effect

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.63

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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%
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: 010401-2026
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The presented product is an incredibly powerful cylindrical magnet, made from advanced NdFeB material, which, with dimensions of Ø18x10 mm, guarantees maximum efficiency. The MW 18x10 / N38 component boasts high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 10.76 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 105.51 N with a weight of only 19.09 g, this cylindrical magnet is indispensable in electronics 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 chipping the coating of this precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø18x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 18 mm and height 10 mm. The key parameter here is the lifting capacity amounting to approximately 10.76 kg (force ~105.51 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros as well as cons of Nd2Fe14B magnets.

Pros

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • Magnets effectively defend themselves against demagnetization caused by foreign field sources,
  • A magnet with a smooth gold surface has better aesthetics,
  • Neodymium magnets deliver maximum magnetic induction on a contact point, which increases force concentration,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to the possibility of free shaping and adaptation to specialized needs, neodymium magnets can be created in a wide range of geometric configurations, which increases their versatility,
  • Versatile presence in electronics industry – they are commonly used in HDD drives, electromotive mechanisms, medical devices, as well as multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices

Limitations

Cons of neodymium magnets: weaknesses and usage proposals
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • Limited possibility of producing threads in the magnet and complex forms - preferred is cover - mounting mechanism.
  • Health risk to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Highest magnetic holding force – what contributes to it?

Holding force of 10.76 kg is a measurement result executed under the following configuration:
  • on a plate made of structural steel, perfectly concentrating the magnetic field
  • possessing a massiveness of minimum 10 mm to avoid saturation
  • characterized by smoothness
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction vertical to the plane
  • at standard ambient temperature

What influences lifting capacity in practice

It is worth knowing that the working load may be lower depending on elements below, starting with the most relevant:
  • Distance (between the magnet and the plate), since even a very small distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick sheet does not close the flux, causing part of the power to be escaped to the other side.
  • Steel grade – the best choice is pure iron steel. Hardened steels may generate lower lifting capacity.
  • Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Product not for children

Product intended for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep out of reach of children and animals.

Bone fractures

Mind your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing everything in their path. Be careful!

Caution required

Handle magnets with awareness. Their huge power can surprise even professionals. Plan your moves and do not underestimate their power.

Demagnetization risk

Keep cool. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, inquire about HT versions (H, SH, UH).

Eye protection

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. We recommend safety glasses.

Health Danger

People with a heart stimulator should keep an safe separation from magnets. The magnetism can interfere with the operation of the implant.

Phone sensors

GPS units and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Machining danger

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Electronic devices

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

Allergic reactions

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease handling magnets and use protective gear.

Security! Learn more about hazards in the article: Safety of working with magnets.