Applied Magnets® 10-pc, Grade N42, Rare Earth Neodymium Disc Magnets, 1/2" x 1/8" with Countersunk Hole.
WARNING:Very strong magnets.Fingers could be severely pinched between two or more magnets.KEEP OUT OF REACH OF ALL CHILDREN.THIS IS NOT A TOY.DO NOT ingest or inhale.DO NOT place in nose, mouth or any other part of the body.Swallowed magnets can stick to intestines causing serious injury (NECROSIS) or even DEATH.Seek immediate medical attention if any magnet(s) are swallowed or inhaled.Neodymium Magnets are BRITTLE.They can SHATTER, CRACK, PEEL or SPLINTER if allowed to snap together or slam into a metal object.Broken magnets can be Extremely SHARP.MAGNETIC MEDIA AND ELECTRONIC EQUIPMENT HAZARD.KEEP AWAY from PACEMAKERS AND INTERNAL MEDICAL DEVICES.Magnetized materials are REGULATED FOR AIR TRANSPORT and are considered a HAZARDOUS MATERIAL.Neodymium magnets will lose their magnetic properties if heated above 175F (80 C).