1. [Magnetism]: Each neodymium magnet is very strong. Each magnet can hold up to 13 A4 sheets of paper, photos and notes on any metal surface. 2. [Space saving] 24 magnets become a storage box. 3. [Suitable size, easy to carry] Diameter: 12mm; Height: 16mm Each magnet refrigerator is tapered, with good shape, easy to grasp, and easier to separate than round magnets. 4. [Durable]: The magnet surface has three layers of coating: nickel copper nickel. This protects the magnet from corrosion and significantly extends its durability. The final layer of nickel provides a smooth surface without scratching anything. 5. [Widely used]: It is very suitable for pasting posters and notes on wall charts, such as hooks on metal surfaces, notepads on refrigerators, nail boards, white boards, etc. (not applicable to glass magnetic boards or magnetic boards)