Easy to install: no drilling required. Just peel off the protective layer on the back and stick it on a smooth surface. Please wait 48 hours before hanging anything to ensure longevity and reliability. SUPERIOR DURABILITY: Strong adhesion and water resistance, providing extra strength and durability. High Quality Material: Heavy Duty 304 Stainless Steel Water and Scratch Resistant Guarantees Durability in Black Metal Finish. At the same time, the durability and aesthetics of the hook are guaranteed. Wide range of applications: sticky hooks are indispensable for every home. It can easily stick to glass, wood, metal, ceramic, tile, etc. Perfect for bedrooms, bathrooms, closets, closets, kitchens, offices and more. Save a lot of space and bring you a comfortable and tidy life. TIP: Hooks are not suitable for limestone walls, wallpaper or painted walls. Leave for 48 hours to ensure better adhesion.