Stainless steel garbage disposal flange and stopper Sink Flange fits 3-1/2-Inch sink opening. Unique plating color technology, the gold color is a little bit darker. There are frosted particles on the surface of the gold garbage disposal flange to prevent discoloration Golden Kitchen Sink Flange: Easy to install Fits for standard garbage disposal units, 4-1/2-Inch rim diameter, 1-5/8-Inch depth Coordinates with golden composite kitchen sinks and stainless steel kitchen sinks