3.5" Kitchen Strainer Drain for Copper Sink 3 1/2 in. Wing Nut Kitchen / Bar / Prep Basket Strainer Wing nut style basket helps prevent unwanted debris from falling into drain 4-1/2 in. rim diameter; 3-3/8 in. body diameter fits most standard kitchen sinks with a 3-1/2 in. drain opening Drain is completely polished and finished Hardware included for more convenient installation Aged Copper finish Solid brass construction for added durability and reliability