Specification: Material: Stainless Steel + Rubber Washer Suitable Sink Diameter: 84mm Rubber Washer Diameter: 53mm Stem diameter: 8mm 84mm strainer cap fits most French sinks With an outer diameter of 84mm, the kitchen sink strainer cap QLOUNI is suitable for UK sinks ranging in diameter from 84-87mm. Please confirm the size of the sink before purchasing. Good sealingUsed with a well-sealed rubber gasket, this kitchen basket strainer plug can well cover the drain hose opening when water is held in the sink. Plus, an extra stainless steel gasket allows for better water storage under the rubber gasket. Avoid Sewer BlockagesThere are 20 drain holes. tank filter can help the water flow out without residue (such as vegetable leaves, hair, etc.), so that the kitchen or bathroom sewer pipe is not clogged. Excellent MaterialMade of stainless steel, this drain's drain plug is rust-resistant and has a long service life. Thicker and heavier materials make this kitchen sink strainer stopper sturdier. Easy to Use and InstallPress button to fill sink, gently lift to drain water and collect the residue.