DURABLE QUALITY: Made of high quality stainless steel, the suction cups are made of PVC. The brushed stainless steel resists corrosion and rust. Strong suction: supporting up to 5kg, it has the advantages of economical and practical, fashionable and modern, moisture-proof, waterproof, wear-resistant, etc. Its powerful suction cups prevent it from slipping. Swivel: It is easy to adjust the saddle head to 4 preset angles, which makes the stand very convenient. Slot diameter: 22mm. Suitable for 22 mm shower head or hand shower. EASY INSTALLATION: Convenient, no holes or screws required. Follow the installation instructions carefully. Firmly push the suction cup against the wall and screw the cover on by hand to complete the installation. Then pull the suction cup to test.Do not turn the shower holder, otherwise the product will lose its adhesion to the wall and may fall. If you have any questions, please contact us and we will get back to you as soon as possible. Bathroom wall hangings can work on smooth, non-porous surfaces such as glass, windows, tiles, mirrors, metal, faux granite, stainless steel, and plastic surfaces and can notbe used on uneven, rough and porous surfaces. Such as wood, natural granite, natural marble, painted walls or curved surfaces.