This 3-1/2 inch polymer disposer flange is designed to work with Elkay Quartz Classic and Quartz Luxe sinks in a black finish. The material is infused with color that won't chip or scratch off from daily use. The flange fits garbage disposals that accept a 4-1/2 inch flange, including select InSinkErator models. It includes a removable basket strainer and rubber stopper for versatile draining options. The polymer construction is corrosion resistant for long-lasting durability. Cleaning is simple—wash by hand with mild detergent and a soft cloth, then rinse.