CMS Magnetics® N45 Dia 1/2 x 1/2" Disc Neodymium Magnets, 5-Count
This listing includes 5 pieces of grade N45 round neodymium magnets which are made of top quality rare earth magnetic materials. The items are axially magnetized and triple layer coated  for a shiny corrosion resistant finish.Neodymium magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses.These magnets are 1/2 inch (0.5) x 1/2 inch (0.5) disc. The individual pull force is approximately 23.5 lbs. They are handy to be used as a metal tester or a stud finder.