The Stikkiworks Co. Stikkidots Classroom Accessories;

Sticks' 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.