Magnet Square - 0.25\"

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 (shown below) at a distance of about 3cm.

**Sold in single units.**