No drilling required: Quick and easy installation, simply attach the hook to a frameless shower door less than 12 mm thick, no drilling or gluing required. Note: For frameless shower only, not for framed shower. Anti-scratch: The top and bottom of the hook have a protective rubber layer to prevent damage or scratches. Non-slip and silent: The rubber protective layer can effectively prevent the hook from slipping while reducing noise simultaneously. Durable and stable: Made of 304 stainless steel, not easy to rust or deform. Versatile: Suitable for hanging towels, bathrobes, shower squeegees, etc.