BYKES 500 Neodymium Super Strong Extremly Powerful Rare Earth Refrigerator Magnets - Perfect for Metal Collar Stays - 1/8" x 1/16" Disc M48
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These disc magnets are 0.125" in diameter and 0.0625" thick. They are magnetized through the thickness. They are composed of grade 48 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 0.8 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.WARNING:VERY STRONG MAGNETS. KEEP OUT OF REACH OF ALL CHILDREN. THIS IS NOT A TOY. DO NOT INGEST OR INHALE. DO NOT PUT IN NOSE OR MOUTH. SWALLOWED MAGNETS CAN STICK TO INTESTINES CAUSING SERIOUS INJURY OR DEATH. SEEK IMMEDIATE MEDICAL ATTENTION IF MAGNET(S) ARE SWALLOWED OR INHALED. MAGNETS ARE BRITTLE. BROKEN MAGNETS ARE SHARP. MAGNETIC MEDIA AND ELECTRONIC EQUIPMENT HAZARD. KEEP AWAY FROM PACEMAKERS AND INTERNAL MEDICAL DEVICES. MAGNETIC MATERIAL IS REGULATED FOR AIR TRANSPORT.