These are small earth magnets . Composed of Neodymium/Iron/Boron (NdFeB), these magnets are strong and make for a great way to attach tools to a metal workbench, hold small children to a fridge, and as a trigger for reed switches. This one small ring can easily hold a piece of paper to your fridge.
- Diameter : 15 mm
- Thickness : 3.2 mm
- Material: NdFeB
- Grade : N42
- Plating/Coating: Ni-Cu-Ni (Nickel)
- Magnetization Direction: Axial (Poles on Flat Ends)