Durable stainless steel construction: Made from grade stainless steel with a thickened body for lasting durability. Resistant to rust and corrosion from water and common acids, suitable for regular kitchen use. Size and compatibility: Outer diameter 80 mm; rubber seal diameter 55 mm; bearingtorim height 22 mm. Please confirm your sink hole is 80–82 mm before ordering. Practical design and filtration: Smooth, rounded shape with 20 small holes provides rapid water drainage while effectively filtering debris, helping to reduce clogs without slowing flow. Dualfunction use: Serves as both a sink plug and a strainer. Press the knob to fill the sink with water, then lift to drain; collected residues stay in the stopper for easy disposal. 2–3 practical applications: Soaking dishes or vegetables while keeping food scraps out of the drain. Rinsing produce with filtered drainage to separate sediment. Draining hot water from large pots without losing floating debris. Care and installation notes: Wipe dry after use to maintain finish. Ensure hole size compatibility (80–82 mm) before for fit.