Features Convenient Use: With a reasonable design, these magnetic thumbnails have a compact size and glossy finish, making them easy to grip and use. Strong Magnet: These push pins provide strong adsorption, can accommodate A4 paper (17 sheets in small, 22 sheets in medium, 31 sheets in large). Multiple Usages: These magnetic push pins can be attached to whiteboard, refrigerator, dry wipe board, or magnetic map, perfect for home or office use. Coating Magnet: Uses 3 layer coating magnet, nickels copper and nickels, to ensure that the magnets do not rust, prevent objects from being scratched. Wide Application: Including 10 pieces magnetic thumbnails, compact and practical, meeting various daily, work, learning, or DIY process needs. Specification: Item Type: Magnetic Push Pins Material: Neody Iron Boron, Metal Coercive Force: 915KA/m Remanence: 12.1-14.3T Intrinsic Coercivity: 955KA/m Maximum Magnetic Energy Product: 34-36KJ/m³ Density: 7.5g/cm³ Operating Temperature: 80℃ Package List:10 x Magnetic Push Pins Note:There may be a slight measurement error. Package List 10 x Magnetic Push Pins