StikkiDOTS® stick firmly to all kinds of surfaces without damage or messy adhesive residue. Removable and reusable, adhesive never dries out. waterproof, safe, and non-toxic. Use on wallboard, cinder block, brick, plaster, paneling, pegboard, concrete, metal, glass, plastic, wallpaper, tile, & almost anything else. Use in home, office, classroom, workshop, kitchen, laundry, hobby room, studio, dorm, locker, & almost everywhere else. Each pack includes 50 StikkiDots. Sold as 6 packs for a total of 300 StikkiDots.