Pack of 12 Magnets with Storage Box, 12 x 16 mm Mini N40 Magnetic Pins Product Description: Material: N40 Model: D12 * 16 Size: 12 * 10 * 16 * 4.2 mm Working temperature: 80 Package includes: 12 * Metal magnetic pins Explanation: Excellent Magnetism - Each magnet can hold up to 12 A4 sheets of paper, photos, notes, etc. Note: These magnets are not suitable for magnetic glass boards or magnetic glass whiteboards High Quality - The magnet's surface has three layers of coating: nickel copper nickel. This protects the magnet from corrosion and significantly improves its durability. The final layer of nickel provides a smooth surface that won't scratch. Super Convenient to Use - They have a beautiful and easy-to-grip shape, making them easier to separate than circular magnets. Wide Range of Uses: Countless combinations are possible. For example, pin paper to a refrigerator or whiteboard, hang family photos, and make models.