Decorate how you want， when you want - without damaging your walls. 3M Command Interlocking Picture Hanging Strips let you fearlessly hang pictures without nails or tools. Make decorating quick and easy. These hanging strips are not only great for picture frames but also for creating a gallery wall， hanging college dorm decor， wooden letters， nursery decor， acoustic foam boards， and more. Hang items on many smooth surfaces including painted walls， wood， tile， metal， glass， and more. Secure the strips by clicking them together. Just one click tells you they're locked in place and holding tight. Whenever you're ready， these strips remove cleanly and damage-free， leaving no cracked plaster or sticky residue. With the 3M Command Interlocking Picture Hanging Strips， you'll be finished decorating in no time.