Features: Make of PP materials, good impact resistance, corrosion resistance and not easy to deformation. Equipped with excellent sealing rubber rings, good elasticity, high density. Button adopts full row/half row designs, and the water level is adjustable. The height of the inlet Valves is adjustable, and the water pressure is different in different gears. Solve the problems of slow water in the toilet, small water output, and inflexible button, drain flush valves. Specifications: Materials: PP Drain Valves Height: 18.0cm (7.09inch)/20cm (7.87inch)/24cm (9.45inch)/28cm (11.02inch)(Optional) Inlet Valves height: 20-28mm/7.87-11.02 inches (adjustable) Package Includes: 1Pc Drain Valves 1Pc Inlet Valves 1Pc Button note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.