Hand button type, convenient to use, flexible, saving water greatly. This manual time-extended flush valve is made by copper material, safe and durable, which could be used for very long time. Fashionable and design, perfectly match your bathroom, practical and useful. Features -Color: Silver. -Material: Copper. -Size: 20.00X10.00X3.50cm/7.86X3.93X1.38in -Suitable Water Pressure: 0.1~0.6Mpa. -Flush time: 3~6s. -Outlet diameter: 1/2". - Made of copper material, smooth surface, not easy to rust, , safe and convenient. - Easy to use and fit for most toilets, universal and practical, , strong and durable. - Convenient to install and replace, and very suitable for home, office, hotel use, and so on. - The urinal flush device has a powerful function, and the is thorough, clean and . - Fine workmanship and delicate process, smooth and glossy, rust resistant, always looks like a new one. Package list: 1 x toilet flush valve