Vacuum adsorption:Super strong suction cup sucker which diameter is large 2.7-inches,the high quality of strong scalability, good air tightness of the silicone material,given it strong adsorption capacity. Easy to install: suction cup shower head is easy to installation, 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. Function: shower holder allows you to place the shower arm at any desired height for easy to access by relocating the shower head Material: shower head holder is made of plastic ABS with chrome polished; Plastic ABS handle and PVC suction cup, all are durable, non rusting and not easy to break, long life to use Extremely wide scope of application: The holder is suitable for no concave-convex smooth surfaces such as smooth ceramic tile, glass, polished metal surface, etc. The package includes an adhesive disc for the other non-smooth surfaces.