Package includes: 1 urinal flush valve, easy to install. Easy to use: hand-push type, detachable and easy to clean, easy to use, flexible, greatly saves water, and is environmentally friendly. HIGH QUALITY AND DURABILITY: Solid zinc alloy construction, chrome finish, rust-resistant, will always look like new, suitable for washbasins and sinks. Sleek and sophisticated design that perfectly complements your bathroom. Manual Delay: Manual delay to close the valve for 4-8 seconds. FLUSH VALVE: If you want to replace, you need to measure the thread size of the water inlet and the height from the center of the water inlet to the bottom of the water outlet. The water pipes and waterways of newly installed households must not be laid, otherwise the waterway has been fixed and may not be installed in a matched manner.