Specifications: Material: Neodymium Grade: N35 Size: 0.4 x 0.4 x 0.4 inch / 10 x 10 x 10 mm Color: Silver Features: Rare earth neodymium magnets, also known as NIB or NdFeB magnets, are comprised of a superior grade neodymium and plated with nickel alloy for long-lasting durability and protection against corrosion. Rare earth neodymium block magnets are ideal fasteners for a variety of arts & crafts, do-it-yourself, jewelry-making, woodworking and other hobby and home improvement projects. Suitable for many DIY projects, such as adsorption of various iron/steel parts, attaching LED lights to a metal surface, etc. Easy to remove. No Marks or Stains left after removing the magnets from your fridge or board. Notes: * Due to effect of light, camera and monitors, real items' colors may have slight difference. * Allow slight dimension difference due to manual measurement. * Thank you for your kindly understanding. Package Includes: 10/20/30 x Cube Neodymium Magnets