Our CRL Foam Tape Squares take the hang-ups out of a sticky business. They are convenient for small hanging jobs such as posters, mirror tiles, signs and much more. They are pre-cut 3/4" (19 mm) squares that feature the holding power you can use in place of nails or other mechanical hangers. Easy-to-use - peel and stick! No messy glues or epoxies, no holes to drill, no screws, nails, nuts or bolts. Won't damage most surfaces, but we recommend you test both surfaces before final application.