12 x strips 4 strips can hold 1 poster Damage free No sticky residue Suitable for most smooth surfaces including painted walls, tiles, metal and wood These command strips are super easy to apply, without the need for nails, screws or drills. The strips blend in seamlessly behind your posters which help to keep them flat and secure to the wall. When you decide to remove them from the wall, the strips off damage-free, leaving no holes, marks or sticky residue, making them suitable for most smooth surfaces such as painted walls, tiles, metal and wood.