No need to call a plumber, easy installation, just screw onto any standard shower hose. Easily attaches to any standard shower hose. Unique propeller-driven design and turbocharged water flow help you remove soap residue in seconds. High quality ABS material, innovative design, easy to install and clean, environmentally friendly and durable can effectively remove most contaminants from the water and protect the health and safety of your family's skin. Size: 26 x 8 cm