1.This shower holder adhesive will stick tightly on the smooth wall, don't worry about it hurting your shower head or family from the cup holder. 2.VACUUM ADSORPTION PRINCIPLE :Super strong suction cup sucker with a diameter of 2.8 inches, made of high-quality silicone material with strong scalability and good air tightness, giving it strong adsorption capacity. The suction can bear a maximum weight of 7.5 pounds. 3.SUPER EASY TO INSTALL: No tools are needed. It is self-priming installation without drilling. You only need to put the suction cup to grip the surface, such as a glazed tile wall, mirror, glass, etc. The suction cup shower head is easy to install. 4.PROBIDED ADJUST ANGLE CAPACITY: Adjustable design allows for convenient adjustment of the angle of the showerhead straight and a 30-degree adjustment from the wall. The shower head holder can rotate 360 degrees. 5.REMOVABBLE DESIGN: The removable shower wand holder allows you to place the shower arm at any desired height for easy access by relocating the shower head holder.