79Mm Sink Plug Hole: The Sink Basket Is 79Mm Diameter, The Plug Is 8Mm Diameter. Fit compatible 79.3~80Mm In Diameter Sink Drain Opening. Note: Please Make Sure Is The Right Size Becompatiblee Purchasing. .Thickened Design: The Kitchen Sink Strainer Is Made Of Premium Stainless Steel 304, We Also Increase The Thickness Of The Sink Strainer Plug To Make It More Durable And Sturdier. .Dual Function Strainer And Plug: Lite And Sink Strainer Plug Can Be compatibled As A Sink Plug And Filter At The Same Time. Press The Knob Down To Fill The Kitchen Sink And Lift It Slightly To Drain The Water And Collect All The Residues. .Smooth Design: Our Strainer Plug Designed In Smooth Shape With Small Holes, It Can Filter Waste Effectively But Let Water Flow. It Is Also Easy To Clean. You Just Need To Rinse It With Water After Emptying The Waste And It Will Remain The Same As A One.