Wide Application: Shower head holder fits round shower riser rails with 18-19MM outer diameter. You can adjust the size of the shower holder bracket to clamp it to the rail flexibly using the rotatable switch at the end position. Note: Do not overtighten the rotatable switch, and do not use a spanner to tighten it.Easy Installation: No tools required. No need to disassemble the shower slide bar. Simply loosen the switch at the end of the shower holder bracket and install it directly onto the shower slide bar.360 Degree Rotation: The shower head holder rotates 360 degrees freely, allowing easy adjustment of spray angle. Tighten or loosen the bracket screw according to the weight of your shower head. Note: Do not overtighten the bracket screw.Protective And Anti-Slipping Design: Features a built-in silicone pad to keep the shower holder securely in place and protect the shower slide rail from daily scratches.Durable Construction: Made from engineering-grade ABS material. Coated with a chrome finish designed to resist scratches and corrosion under normal use.