Plumb Craft 7636500N EZ Lock Basket Sink Strainer Assembly Prevent drain clogging Fits 3-1/2-Inch outlet Contains one stainless steel strainer body with basket, one retainer with thumb screws, one 3-1/2-Inch flexible washer, one 3-1/2-Inch metal washer, one 1-1/4-Inch coupling nut washer, and one coupling nut Stainless steel construction Chrome finish