Power magnet, Cube 4x4x4 mm.

Small but strong cube magnets. Made of neodymium.

Length: 0.4 cm.
Width: 0.4 cm.
Heigth: 0.4 cm.
Strength: approx. 0.5 kg.

Small square magnet with incredible strength - don't let the size fool you. 

Buy just the amount of magnets that you need; Sold seperately.

SPECIFICATIONS:
Strength: approx. 500 g.
Material: NdFeB
Magnetisation: N42
Max. temperaturee: 80°C
Surface: nickel-plated (Ni-Cu-Ni)

This size is not strong enough for glass boards.