Without DrillIt is a self-priming installation, when installing, press the center of the suction cup firmly to remove the air and lock the knob clockwise. (Clean the wall and dry it before use to keep them clean and dry) Extra Strong Suction CupOur suction cup shower head holder can withstand a weight of 5 kg. The suction cup has superior flexibility and good airtightness. Wide range of applicationsThe shower holder can stick to many smooth surfaces, such as marble, glass, metal, ceramics. The standard connector can accommodate almost all hand showers and shower hoses. 360 RotationOur shower head bracket can be rotated 360 to meet your needs at all angles and can be rotated up and down. High quality materialPlastic ABS holder and PVC suction cup, moisture-proof and waterproof Specification: Material: environmentally friendly ABS resin Color: silver Size: Suction cup: Diameter 7 cm, total height: 10 cm Package included Shower bracket x1 Note: - Suitable for flat, smooth, solid walls, not suitable for rough places - Stick on a solid, smooth surface, make sure the surface of the stick is clean before use.