The screw hook is made of high quality stainless steel and PVC material, which is waterproof. It is very suitable for use in shower rooms and kitchens. Clean the place you choose to stick and keep it dry, then peel off the protective layer in the back and press it on the place, there won't be any glue mark left if you tear it off. Can be used for Painted surface, marble surface, clear glass, wood grain surface, frosted glass, hard plastic surface and so on can be firmly placed in the wall, bricks, glass, metal, wooden doors, planks. The backing of these little sticky hooks are clear so they’re not immediately noticeable to anyone who comes in the house if they don't have anything hanging on them. This sticky hook has excellent water and oil resistance performance. Even used in shower or kitchen, the wall hook will not fall off. The water and oil will not affect the viscosity and sealing force of the seamless hook., Manufacturer: Flosfjylo