About this item 360 Degree Rotation: The shower head holders can rotate 360 degrees freely. To make it easier to adjust the spray angle, you can tighten or loosen the bracket screw according to the weight of your shower. Wide Application: This shower head bracket fits a rail round riser pipe 22-25 mm outside diameter. You can adjust the size of the clamp holder to clamp the shower head holder on the rail flexibly by the button in the final position. Note: Do not overtighten the knob or tighten it with a wrench. Easy Installation: No tools required, no need to disassemble the shower rail, just loosen the knob at the end of the shower head holder, then it can be installed on the shower slide bar. Protective and non-slip design: Built-in silicone cushion, to keep the shower head holder in place and protect the shower slide from daily scratches. Durable construction: The shower head holder is made of engineering grade ABS. Coated in an industry leading chrome finish, designed to resist everyday scratches and corrosions.