This shower holder is made of hard ABS with a black surface and the back is non-metal. It is designed to resist scratches, corrosion and tarnishing There is a shower holder that attaches to the wall with screws. It is much safer than suction cups Swivel and adjustable bracket that allows you to easily adjust the angle of the shower head to the comfortable position you want Conical shape of 22 mm in upper diameter and 20 mm in lower diameter, compatible with the standard G 1/2" shower head It can be installed on any type of wall, not only on ceramic tiles. ceramics, stone tiles, but also on limestone walls, concave walls and textured walls Features: Material: ABS plastic. Ready to use: black. Maximum load: 3 kg. Top opening diameter: 22 mm. < p>Aperture diameter: 20 mm. Installation method: screws Application on: standard G 1/2" hand shower Contents: 1. Mark the holes and drill the holes with the drill bit. 2. Insert the anchors and screw into the base. 3. Place the bracket up and down and attach the shower head.