This set includes 50 self-adhesive magnets measuring 20 mm in diameter and 1 mm thick, ideal for a variety of creative projects. Their adhesive backing makes them easy to attach to photos, decorations, crafts or other small objects to turn them into magnets. Thin and compact, they fit discreetly behind creations, which can then be displayed on a compatible metal surface. A versatile set for easily creating personalized magnets!Recommended for ages 10 and up.