GLUE DOTS-Poster Dots. Poster glue dots are double-sided adhesives that bond instantly to clean dust-free surfaces. They remove easily without staining or leaving a sticky residue. Ideal for hanging posters, photos, and other lightweight items on wood, glass, cinderblock, painted walls, foam board, metal and more. This package contains one 2-1/2x3-1/2x3/4 glue dot dispenser with 200 adhesive dots (3/8-inch wide). Acid free,