Feature 1STRONG MAGNETIC: The powerful magnet is made of premium neodymium iron boron and stainless steel, which is small and light, and has strong magnetic force. 2CORROSION RESISTANT: Three layers of nickel, copper and nickel coatings to reduce corrosion and provide a smoothly surface. 3LONG LIFE SPAN: The use of powerful neodymium magnet will not break in normal use, because the magnet is protected by the inside of the steel cup, which greatly improves the service life of the magnet. 4WIDE APPLICATION: The magnet is suitable for home, office, classroom, school, science, adult, children's science and interesting decoration. 510PCS: There are 10 pieces magnets in the package that suitable for long term use and make replacements.SpecificationItem Type: Countersunk Hole MagnetMaterial: Neodymium Iron Boron, Stainless SteelColor: SilverSurface Electroplating: Nickel platingWorking Temperature: 80 Application: Suitable for family, office, classroom, school, science, adult, children's science and interesting decoration. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List10 x Countersunk Hole Magnet