Standard Toilet Push Buttons38mm size water tank push buttons; 2 toilet flush valves; 4 long screw rods.High quality materialsDouble flush toilet push buttons, made of ABS materials, non-toxic and harmless, durable.Screw rod extension : Closestool high pressure pump flush button equipped with two 10.5 long screw rods, can be cut as needed, adapt to different toilet heights, flexible and comfortable.Coating high precision: standard 38mm toilet knob. Full button coating, brilliance and luminous surface adapt to the complex bathroom environment as well as corrosion resistance against acid and alkali.Easy to use The flush button double disassembly, easy installation, simple structure and not easily damaged.