BYKES 500 Neodymium Super Strong Extremely Powerful Rare Earth Refrigerator Magnets 1/8" x 1/16" Disc M48 Package of 500 Magnets - Grade N48 Pulling Force - 0.8 lbs Neodymium Iron Boron (NdFeB) Rare Earth Magnets 0.125" Diameter x 0.0625" Thick WARNING: VERY STRONG MAGNETS. KEEP OUT OF REACH OF ALL CHILDREN. THIS IS NOT A TOY.