This gunmetal black topmount single bowl kitchen sink is handmade of high-quality 16 gauge T-304 stainless steel and has a Nani-coating brushed finish and polished surface, which maximizes durability and prevents rust and oxidation.The 28 inch drop-in stainless steel kitchen sink will satisfy your need for a small kitchen sink and save space.Drop in single bowl kitchen sink dimension: Exterior dimensions-28" Wx22" Lx10" D, Interior dimensions-26" W x 16.8" L x 9.75" D. Minimum cabinet: 31". Drain opening ---3.5-inch as standard. Cut out : 27.2" W , 21.2" DGunmetal black topmount handmade kitchen sink fashion design: X-shape water guiding line at the bottom of the gunmetal black drop-in stailess steel drop-in single bowl kitchen sink direct water toward drain faster to prevent blockage.3.5 inches drain hole which can beconnected with garbage disposal.3mm thick rubber pads good for sound absorbtion.Heavy anti-condensation coating, to prevent condensation caused by weather changes.Packaging included:28 in. gunmetal black drop in stainless steel single bowl kitchen sinkStainless steel bottom grid which keep the bottom smooth and unscratched ;Roll up rack for organizing different items and easier handing and mounting hardware;Drain assembly keeps food and debris from clogging the drain pipe and prevent water flow.Mounting hardware. Cutting out template paper .Warranty information:3 months hassle free for return and money back, please buy with confidence. Welcome to contact us if you have any question for the stainless steel gunmetal black topmount kitchen sink.