DIYMAG Super Strong Neodymium Magnet, 40 x 20mm Rare Earth Magnets High Power Round Magnetic Large Magnetics Permanent Disc Magnetism 2 Piece

DIYMAG Super Strong Neodymium Magnet, 40 x 20mm Rare Earth Magnets High Power Round Magnetic Large Magnetics Permanent Disc Magnetism 2 Piece

HIGH QUALITY: Made from strong neodymium-iron-boron alloy (NdFeB) and have a stylish nickel coating (Ni-Cu-Ni) with an appealing silver surface --- All the magnets are magnetized axially and have a maximal operating temperature of 80 degrees Celsius MULTIPURPOSE: These neodymium magnets are perfect for DIY craft projects and scientific projects LARGE SIZE: Diameter 40mm x thickness 20mm(approx.1.57"x0.79" ).Tolerances: ±0.2mm x ±0.2mm. Stronger magnetic properties and wider applications than ordinary magnets USAGE TIPS: Neodymium magnets are not actually made of solid blocks of metal, but rather large amounts of powder pressed into blocks through a process called sintering. When subjected to a sudden impact, they will break. To prevent the magnets from breaking, the two magnets should be separated by a large distance to prevent them from being attracted and collided. PURCHASE TIPS: If you purchased it to remove, please buy a combination of 2. The combination of 2 pieces has stronger magnetism. One piece of magnetic block can only be used for 85% of the labels on the market, and two pieces combined can be used for 98% of the labels on the market