3-1/2-inch Kitchen Sink Strainer with Removable Deep Waste Basket/Strainer Assem g2024216129595% 304 stainless steelStandard size 8.9 cm opening: fits most American family / commercial kitchen sinks. It can fit 8.2 cm - 11.3 cm opening sinks. ^The height of this kitchen sink drain is 9.8 cm. Before buying, please measure whether it is compatible with existing sanitary facilities.^High quality construction made of 304 stainless steel, except for plastic nut (metal nut corrodes and connects the nut to the strainer) and a brushed nickel finish.^The detachable separate deep basket prevents debris from clogging the drain pipe. (Note: It cannot be connected to the garbage disposal.)^Easy to install: no plumbers required. You can contact KONE if you need help with the installation. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.