Super neodymium magets are made of neodymiun, the most powerful magnet material in the world.
-The larget size shown here is only the size of two dimes, but strong enough to hold a 1/4" thick pad of 3"x3" sticky notes to a metal filling cabinet.
-Super Magnets are great for projects that require extreme strength in a small size or simply to amaze friends.
-Due to the extreme strength these magnets are NOT FOR CHILDREN, because they can pinch fingers.