Command Damage-Free Hanging, Holds Strongly, Removes Cleanly.Command Hooks and Clips with Water Resistant Strips allow you to keep your bathroom organized both inside and outside of the shower. They stick to many surfaces, including glass, mirror, tile, fiberglass, wood and painted surfaces. They adhere firmly and come off leaving no holes, marks, sticky residue or damage, providing a great alternative to unsightly, unreliable suction cups and damaging screws and nails. Moving them for cleaning or reorganization is as simple as applying a refill, waterproof Command Strip!