SparkFun will be closed on Monday, May 30th, for Memorial Day. We will resume normal business hours at 9am (MT) on Tuesday, May 31st. Orders placed after 2pm (MT) on Friday May 27th will process and ship out on Tuesday, May 31st. From all of us at SparkFun, we wish you a safe and happy Memorial Day weekend!
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.
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