Made from high-quality plastic and stainless steel, durable and corrosion resistant. Adjustable flush volumes for full and partial flush, helping to save water by reducing the amount used per flush. Dual flush system with half and full flush options to increase toilet efficiency. Designed with a rubber gasket to help prevent leaks in toilets. Useful cistern toilet repair kit, compatible only with connected toilets. Material: Plastic + Stainless Steel Dual flush button diameter: approximately 7 cm #A: Drain valve height 18 cm, fill valve height 24.5 cm; fits cistern height 18–24 cm #B: Drain valve height 24 cm, fill valve height 29.5 cm; fits cistern height 25–30 cm #C: Drain valve height 20 cm, fill valve height 29 cm; fits cistern height 20–24 cm #D: Drain valve height 18 cm, fill valve height 27.5 cm; fits cistern height 18–23 cm #E: Drain valve height 24 cm, fill valve height 24.5 cm; fits cistern height 24–29 cm #F: Drain valve height 28 cm, fill valve height 24.5 cm; fits cistern height 28–34 cm #G: Drain valve height 28 cm, fill valve height 27 cm; fits cistern height 28–36 cm #H: Drain valve height 20 cm, fill valve height 29 cm; fits cistern height 20–26 cm Package includes: 1 set toilet tank repair kit Note: Item is shipped randomly; all units have the same function.