Material: The adhesive hooks are made of 304 stainless steel, which is corrosion resistant, waterproof, scratch resistant and durable. The adhesive sticker expands to provide better adhesion. Size: 4.54.53cm. Easy To Install: This self-adhesive hook does not need to drill holes on the wall and does not require any tools or screws. Just peel off the sticky tape on the back and stick it on the wall. Waterproof and Rustproof: Our 304 stainless steel hook has good waterproof and rust resistance, which is very suitable for showers and bathroom accessories hanging in the bathroom. No Residue & Polished Edges: Self-adhesive hook edges are smooth and polished and won't damage towels or clothes. Thanks to its inclined design, the hanging clothes will not fall easily. Wide range of uses: This hook is suitable for smooth surfaces, such as glass, mirrors, tiles, metal surfaces, etc., perfect for bedroom, bathroom, toilet, closet, kitchen and office, etc., ideal for carrying items such as towels, hats, umbrellas, etc.