| Material | Neodymium-Iron-Boron |
| Strength | approx. 3,7 kg (approx. 36,3 N) |
| Displacement force | approx. 1,1 kg (approx. 10,9 N ) |
| Sticks to whiteboard | 15 A4 sheets |
| Covering | Rubber (TPR) |
| Colour | Black |
| Shape | Disc |
| Diameter | 16,8 mm |
| Height | 9,4 mm |
| Direction of magnetisation | Axial (parallel to height) |
| Magnetisation | N42 |
| Max. working temperature | 80 °C |
| Weight | 11 g |
The disc magnets feature rubber coating,the finished size is Ø16.8x9.4mm, they are suitable for outdoor or underwater use. The advantages of neodymium rubber coated disc magnets 16.8x9.4mm as below:
· Neodymium disc magnets with rubber coating rust-resistant even in wet environments
· Scratches are protected against on delicate surfaces, such as magnetic glass boards and whiteboards.
· Compared to neodymium magnets of similar size, neodymiium disc magnets with rubber coated have higher magnetic adhesive force in shear direction .
Warning: When the 16.8x9.4mm neodymium rubber coated disc magnets are forcefully dragged over a surface the rubber coating may leave dark marks