• High-quality ferrite magnets with electroplating technology that protects magnetism and prevents breakage or rust. • Powerful adsorption capacity for fixing photos, notes, and other objects on metal surfaces. • Practical design and easy to use on refrigerators, offices, bulletin boards, and schools. • Dimensions of each magnet: 20 mm diameter by 5 mm thickness. • It is recommended to clean the magnet before use to avoid stains. • Product not suitable for magnetic glass boards.