Dimensions: The sliding adjustable rectangular shower head holder measures 11.8 x 4 x 2.3 cm or 4.64 in x 1.57 in x 0.9 in. Suitable for riser rails 18mm or 0.7" wide and 30mm or 1.18" long. This slider bracket is designed for use with rectangular shower rod kits. Suitable for standard shower heads, shower head clips for hand showers with standard connectors. HIGH QUALITY: The shower head holder is made of high-quality ABS plastic, chrome alloy, corrosion-resistant and rust-proof, ensuring durability and service life. This shower rail slider matches perfectly with other fittings and accessories to keep the look of your bathroom in sync. Unique advantages: This slider bracket requires no drilling, does not damage the wall, is waterproof, and has super strong adhesion. And the square slider can slide flexibly, suitable for people of different heights, and you can adjust the height according to your needs. Easy to install: The rectangular shape of the knob is easy to install, no drilling required, no tools required, no need to remove from the wall. The angle of the shower head bracket can be adjusted during showering. Simply press the button to adjust the height of the bracket on the rail and release to secure it in place. BEST REPLACEMENT: The shower head slider holder is perfect for hotels, bathroom shower rooms or homes, making it a great replacement accessory for easy installation. Shower rail sliders are great for adults and children. It is a must-have item to enhance family happiness.