DURABLE CONSTRUCTION: The shower support bracket is made of engineering grade ABS. Clad in an industry-leading chrome finish, designed to resist daily scratches and corrosions. ADJUSTABLE DIAMETER AND HEIGHT: KES shower head holder fits round riser bar with 18-25mm outside diameter. You can easily adjust the height of the shower along the shower pole to provide every member of the family with a comfortable showering experience.Note: 21mm is the top, 19mm is the bottom, do not install it upside down. 360 DEGREE ROTATION: The shower head holder 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. EASY INSTALLATION: No tools required, no disassembly of the shower bar slider, just enjoy the thoughtful design of this shower slider bracket. The shower holder can hold up to 2 kg of hand shower. Note: Please do not overtighten the rotary handwheel and do not tighten it with a wrench. PROTECTIVE AND ANTI-SLIP DESIGN: Integrated silicone cushion, to hold the shower holder in place and protect the shower slide from daily scratches.