The shower head valves is made of brass, which is resists corrode and tarnish. It can not only adjust the volume of the water flow but also completely shut off the water flow. Can be perfectly matched with handheld shower head, fixed shower head, toilet bidet sprayer, shower arm, etc. Features - Color: Silver. - Material: Brass. - Size: 4.00X2.00X2.00cm/ 1.57X0.79X0.79inch. - Connection: G1/2" screw threads. - Adopted premium brass material, installs in minutes, no plumbers required. - Universal G1/2" standard thread connections of this shut off valves, fits all standard hand showers. - Shower head flow control valves can be used for hoses , bidet sprayer or shower head. - Can be used as shut-off valves or water flow control valves. Adjust flow as desired, from full off up to full open. - Can be perfectly matched with handheld shower head, fixed shower head, toilet bidet sprayer, shower arm, etc. Package list: 1 x Shower Head Flow Restrictor