Fits Standard 3.5 Inch Drain Openings. This Is A Garbage Disposal Flange Compatible With All Insinkerator Model Garbage Disposals.Stainless Steel Construction With Nano-Pvd Finish To Match Your Ruvati Colored Stainless Steel Sink. Copper / Bronze Tone Matte Finish.Removable Strainer Traps WastePush In Stopper With Rubber Gasket