• Extra strong neodymium magnets with triple coating of nickel, copper, and nickel, providing excellent protection against corrosion and increased durability. • The final nickel layer offers a smooth and scratch-resistant surface. • Approximate dimensions of each magnet: 12 mm x 16 mm. • The set contains 12 units with a total weight of 95 grams. • Each magnet can hold up to 20 sheets of A4 paper, photos, notes, and other documents. • Ideal for use in homes, offices, and schools, allowing you to attach papers, notes, and photos to magnetic boards, whiteboards, bulletin boards, refrigerators, and other magnetic surfaces. • Handle design makes removal easier compared to conventional round magnets. • Not suitable for glass magnetic boards. • Warning: not recommended for children under 5 years old due to choking hazard from small parts. Not a toy.