Sink Dimension:Exterior Dimensions: 24"L x 14"W x 9"D, Interior Dimensions: 21"L x 11"W x 9"D. Standard 3-1/2" Drain Opening That Fits the Most Common Garbage. And you will get 1xpc Multi-functional dish grid with rubber feet to prevent scratching, 1xpc deep drain basket keeps food and debris from clogging the drain pipe and prevent water flow, 1xpc Dish Drying Roll-up Rack to air-dry washed bowls, pot, fry pans,,1xpc Cutting board, 1xpc Installation instruction to guid you how to install it, 1xpc Cutout template and some mounting clips to help you install it more quickly.Durable Material, NANO Features : This black undermount sink is constructed with dent-resistant T304 stainless steel in TRU16 real 16-gauge for superior strength and durability. Will never rust or stain , Easy to clean and long-lasting. And matte black farmhouse sink with Gunmetal Matte Black NANO brushed works like water on Lotus leaf - no water trace left .Very easy to clean,anti-freezing heat and non-seepage water ,1000℃ high temperature do not fade.Workstation Sink:The undermount workstation with steps which overhanging lips on the front and back as a track for sliding the built-in accessories convert your sink to a workspace. It can be switched to a cutting board or a separate sink mode. If you don''t want to wash the dishes, Cutting Board covers the entire sink also cover your dirty dishes.Kitchen Sink with Cup Washer: The black cup washer is made of high-quality ABS material, and the main body is made of copper. The cup mouth diameter ≤ 4inch can be used. The powerful water flow of the glass cup washer can thoroughly rinse the residue in a few seconds.