Please NoteOnly for frameless glass shower doors up to 3/8 (10mm) thick not for framed shower doors. Drilling-FreeEasy installation just attach the hook to your shower door to save shower space no drilling or sticking required. Anti-ScratchBack covered with sponge pads better fit into shower glass anti-scratch and noise-free. ExtendedLengthened to 7 inches based on market research makes it more friendly to shorter people and more convenient to use. Durable & StableMade of brushed 430 stainless steel not easy to rust great for hanging towels bathrobes and shower loofahs etc.