Nozzle holder measures: The suction of the nozzle holder has an adjustable groove for fixing the existing nozzle. Fits shower hose bottom diameter between 0.7~0.9 inches (18~23mm). Not suitable for shower hose bottom diameter >=0.9 inches (>=23mm). It is recommended to measure the size before purchasing. Usage Guide: This powerful shower head holder wall mount is best suited for non-porous, smooth surfaces such as glass, mirrors, ceramic tiles, polished metal, plastic panels, etc. The suction cups are not suitable for any uneven surfaces. Easy to install: You can install the suction adjustable shower head holder in 1 second. No drilling required and no screws required. The handheld shower head holder is stable, waterproof and rust-proof, and will not damage the wall or leave marks after disassembly. Waterproof material: The suction cup shower head holder is made of engineering grade ABS plastic. Waterproof, rust/corrosion resistant. Strong enough to easily survive long-term use in humid bathrooms. Adjustable design: The rotating design allows you to conveniently adjust the angle of the shower head to 70 degrees. The suction cups are removable and replaceable. You can place the handheld shower head or bidet sprayer wherever you need it. Suitable for high or low position, inside or outside the bathtub. Perfect for your wife, kids or parents who may not be able to reach the shower head. Specification: Material: ABS Weight: 150 g Dimensions: 11.4*7*6.4 cm / 4.48*2.75*2.52 inches (length*width*height) Notice: 1. Please allow 1-2cm differences due to manual measurement, please make sure you don't mind before ordering. 2. Due to differences between different monitors, the picture may not reflect the actual color of the item. Packing list: 1 shower holder