Vacuum adsorption principle:Super strong suction cup sucker which diameter is large 2.8-inches,the high quality of strong scalability,good air tightness of the silicone material,given it strong adsorption capacity. suction can bear 7.5 pounds maximum weight. Super Easy to install: no tools need, it is self-priming installation without drilling, you only need to put the suction cup to grip the contact surface, such as glazed tile wall, mirror, glass, etc.suction cup shower head is easy to installation. Provided Adjust Angel Capacity:adjustable designed so that convenient to adjust the angle of showerhead on straight and adjust 30 degrees from the wall.The shower head holder is rotating 360 degrees. Removable Design: Removable shower wand holder allows you to place the shower arm at any desired height for easy to access by relocating the shower head holder. Main Materail:ABS plastic material,Light weight but heavy duty engineering grade plastic.Suction cup shower holder can be easily removed in a second & placed at a different location,improves the ability to wash freely your kids or pets. Note: 1. This Is a Bracket For Temporary Use Don't Leave The Shower On It For a Long Time. 2. Make Sure The Wall Is Smooth, It Will Fall Off If It Is Not Smooth. 3. Spray Some Water On The Suction Cup To Ensure The Adsorption Force. 4. There Is a Yellow Mark On The Button, If The Yellow Becomes More And More, Please Press It Again.