Thank you, good day The wall hook is self-adhesive - no drilling is necessary and it will not damage the wall or glass. Ideal for tiles, wood, plastic, glass, mirrors. Features --- Allows the brackets to fix items of less than 3 kg. Very suitable for heavy clothing, accessories, etc. Two interchangeable adhesive surfaces are used, and the hook can be reused if necessary. Material --- The hook is made of very stainless steel 304 stable and resistant to corrosion with 3M ribbon, offering the best adhesion and water resistance. Installation --- Wipe the clean surface, and then remove the rear protection layer from the 3M adhesive panel, and then paste the hook to the desired position (the surface should be smooth, Like ceramic tiles, metal surfaces, glass, etc.) Supply range: 4 pieces * Self-adhesive towel rack Rugged metal structure, robust and durable structure, high load capacity. Quality 3M glue, easy to glue, high strength. Universal hook Due to the use of durable steel brushed stainless steel, the hook will not rust, but be careful. It can be used to hang clothes, hats, keys, etc. No drilling required during installation The self-the adhesive surface can provide a solid connection and the round shape of the connecting surface can make the joint uniform and solid. Paste it simply on the selected surface. Specification: Material: Stainless steel 304 Size: 45 * 45 * 2mm Installation: self-adhesive with 3M ribbon Caution: 1. Clean the wall before use. 2. Do not stick to painted walls and wallpaper. 3. Please do not use the hook within 24 hours of assembly.