Easy Installation: The lever handle can be operated smoothly and effortlessly even with damp, soapy, or slippery hands since the moving component glides with minimal effort.Brass Body Construction: Shower head flow shut off valve is made of brass with a handle made of metal, not plastic, ensuring quality and longevity. Features greater durability and resilience to pressure and heat than plastic ones. It won't leak and can last for many years.Universal Compatibility: Standard straight thread connections with a G1/2-inch IPS female intake and 1 X G1/2-inch IPS male exit accommodate the majority of shower heads, shower arms, hoses, and water pipelines.Wide Uses: It can be installed between the shower arm and the shower hose; the shut-off valve can be used as a shut-off valve, a water-saving valve, or a pressure-reducing valve. Cost-effective improvements for shower heads, garden hoses, bidet sprayers, etc.Easy Water Flow Adjustment: shower head flow restrictor enables control of water flow, including volume regulation.