【Powerful】 - Each pin can hold up to 7 sheets of 80g A4 printer paper. Powerful pins with neodymium magnet, super strong hold even multiple sheets overlay, post cards, photos and similar Colourful magnetic sets: 32 attractive eye-catchers for home, school, work, 8 colours, length approx. 20 mm, diameter approx. 12mm Neodymium Magnets with Storage Box 【Perfect material】 - Made of neodymium magnets and polypropylene, it combines durability, durability and function. Virtually indestructible magnet push pins with high resistance. 【Widely used】 - Universal use for metallic surfaces such as memo board, whiteboard, fridge door, magnetic strip, magnetic strip (no magnetic glass board).Offices, schools, home, on pin board, refrigerator, card or other where you need to stick something. 【Satisfaction Customer】- If the items you received is defective, please inform us within 7 days upon receipt of item, we will replace another new one.