Item Type: Countersunk Hole Magnet Material: Neodymium Iron Boron, Stainless Steel Color: Silver Surface Plating: Nickel Plated Working Temperature: 80 Application: For home, office, classroom, school, science, adults, children science, interesting decoration. Package List 10 x Countersunk Hole Magnet 1EXCELLENT NEODYMIUM IRON BORON: The countersunk hole pot magnet is made of excellent neodymium iron boron and stainless steel, robust and wear resistant. 2SILVER APPEARANCE: NdFeB countersunk hole pot magnet has the easy finding appearance, silver color and you can simple to get the magnet when you work. 3ROBUST THREE LAYERS PLATING: This countersunk hole pot magnet has the robust three layers of nickel, copper and nickel plating to reduce corrosion. 4LIGHTWEIGHT AND SMALL: This countersunk hole pot magnet is lightweight, small and portable, with the smooth surface that will not break during normal use. 5SUITABLE APPLICATION: This countersunk hole pot magnet is suitable for home, office, classroom, school, science, adults, children science, interesting decoration.