Pack of 50 round magnets measuring 4 mm x 2 mm in silver color. Ideal for fixing photos, scientific experiments, crafts, and creating interesting shapes. High resistance to demagnetization, corrosion, and oxidation. Brushed silver nickel finish for increased durability. Scratch-resistant technology that leaves no marks on surfaces. Perfect for use on refrigerators, washing machines, office boards, school lockers, etc.