3-1/2 INCH KITCHEN SINK DRAIN: fit for most American standard kitchen sinks with Universal 3-1/2 inch drain hole. Please measure your sink hole before you made the order. | 304 STAINLESS STEEL: Antique Copper stainless steel body and strainer basket, Metal center knob. Durable and dependable, rustproof no leaks. | USE EASILY: Works as a kitchen drain strainer and a kitchen sink stopper, depend on which way you want. Easy to stop the flow of water and open back up. Easy to clean. Just remove the basket to empty. | EASY TO INSTALL: Package included installation instruction, You do not need professional skills to become a plumber. | CUSTOMER SERVICE: If for any reason our kitchen sink drain assembly does not meet your expectations, easily email us back for a full refund!