These are very small rare earth magnets - 0.125" 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. Don’t let the photo fool you - these are very small magnets.

Activates the reed switch (shown below) at a distance of about 1cm.

Sold in single units.

(SF-COM-08644)

SKU SF-COM-08644
Brand SparkFun

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