Neodymium Ring Magnet (20 x 4mm)
These are 'rare earth' magnets, made of Neodymium Iron Boron. They are round, with a countersunk hole in the centre. The ring measures 20mm in diameter, 4mm high and has a 5.2mm countersunk hole.They are ideal for making your own magnetic cache containers, adding to (or replacing) the magnets in micro caches etc. The hole allows you to attach them to the container using a screw or bolt. They are nickel plated for corrosion resistance.
For safety and care information, please read the Extended Information tab.
We Also Recommend