1.VACUUM ADSORPTION PRINCIPLE:Super strong suction cup sucker diameter is large 3-inches,No screw and drill required,no harm to wall surface.Place the shower head wherever you need it. 2.EASY TO INSTALL AND REMOVABLE OR RELOCATE:No drill.Clean and dry the smooth position.Press the holder.Slide down the lever.even the whole process finished in seconds.And Convenient to remove or reuse after clean.Now you can place your shower or bidet sprayer to anywhere you want.high or low position,inside or outside of bathtub.for your wife,kids or parents that if somebody can't reach the shower. 3.MATERIAL AND FINISH:This shower head holder can adjust the angle when you are showing, and it holds different style handheld shower heads.To enjoy more angle bath.:Engineering grade plastic (ABS) constructed, ensuring quality and longevity. Looks premium and shiny. The new technique let the shower holder light but heavy duty engineering grade plastic. 4.INSTALL LOCATION: Holder is suitable for smooth and no concave convex smooth surface such as ceramic tile,glass,smooth wood,smooth metal surface,etc.The others non-smooth surface please use adhesive disc first(provided in package)to overcome them, such as rough wood,emulsioni paint,textured tile, etc. 5.Wide Range Of Application Heavy Duty Waterproof REMOVEABLE, ADJUSTABLE and REUSABLE.Provide a more convenient use, gives you a comfortable bath.