Premium Quality: The food waste disposer flange black is made of premium stainless steel with protective plating layer,it is rustproof,anti- and for long lasting. Universal Size: garbage disposal flange and stopper fit 3-1/2 inch standard drain opening,suitable for standard garbage disposal,ensures a seamless integration with your existing sink and disposal system. The height of sink flange for garbage disposal is 1-3/4 inch. Easy to Use: The standard garbage disposal drain cover is easy to use. This kitchen Sink drain garbage disposal a simple push-and-twist mechanism that allows you to quickly and easily seal off the disposal,which makes it easy to fill up the sink with water or wash dishes without worrying about accidentally turning on the disposal. Watertight Seal: The sink drain disposal stopper is designed to fit snugly into the sink garbage disposal flange, creating a tight seal to prevents food and debris from escaping into the disposal. Simple Installation: The matte black garbage disposal sink flange and sink drain dispposal stopper are easy to install without special tools or skills required. Simply screw the sink disposal flange onto the disposal and insert the sink plug into the flange.