Description:
These are small rare earth magnets - 0.25" cubed. Composed of Neodymium/Iron/Boron (NdFeB),
these magnets are curiously 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.
Activates the reed switch at a distance of about 3cm. and many other applications...