[T-304+16 Gauge Thickest Stainless Steel] Stainless Kitchen Sink Drop-in made from T304 16 Gauge durable stainless steel .The panel is 1.35mm thick will not deformed. It is filled with dishes for a long time. The sink is still strong.[Drain Easily, Sound Proof] The X-shaped water guide allows the water to flow down more smoothly, making the sink easier to clean and maintain its beauty.[Coating and Silencer Pad] There is a thick coating on the outside of the sink to prevent condensation caused by weather changes. In addition, the 3mm thick rubber silencer pad can greatly reduce the noise from the faucet and give you a quieter cooking environment.[Dimensions] Exterior Dimensions: 33" x 22" x 9" (Minimum Recommended cabinet size: 36 inches). Interior Dimensions: 31" x 17.75" . Standard 3-1/2" drain opening fits most common garbage disposals. Recommended Cutout Size: 32.2 x 21.2 inches.[Included in the Package] Comes with this kitchen sink: 1 x 304 stainless steel dish grid, 1 x drain assembly, 1 x drying rack,1 x installation clips, 1 x cutout template and installation Guide.