The versatile self-adhesive hook from 3M COMMAND is designed for damage-free removing as well as strong attachment on a variety of surfaces, allowing you to hang what you want, where you want, without the hassle of tools and nails. Just clean the surface with rubbing alcohol. Press adhesive tape to hook then press the hook firmly to wall and wait 1 hour before use. (Do not use the product on wallpaper, vinyl walls, and other surface with high temperature.)