Features: 1. Available in a variety of sizes, super water saving, environmentally friendly. 2. Drain button for split toilet tank, made of high quality ABS material. 3. Sealing rubber ring, good elasticity, high density, not easy to age 4. Used for bathroom repair updates. Multi-size optional. 5. Hook locks, strong locking force, strong corrosion resistance, prevent breakage Specification: Material: ABS Size: 18.5cm: 6.5-7.5cm(Inlet diameter), support 19-24cm height water tank 21cm: 6.5-7.5cm(Inlet diameter), support 21-25cm height water tank 25cm: 6.5-7.5cm(Inlet diameter), support 26-29cm height water tank 29cm: 6.5-7.5cm(Inlet diameter), support 30-36cm height water tankincludes:1x Cistern Inlet Drain Button Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.