The PRECIS 30 in UNDERMOUNT SINGLE BOWL KITCHEN SINK offers clean lines and a simple but spacious single bowl design. This kitchen sink is made of SILGRANIT, a patented, certified granite composite material that is engineered to take on the toughest kitchen tasks. SILGRANIT is heat, scratch, stain, chip and impact resistant, making it stronger and more durable than other sink materials. Beautiful and highly functional with its non-porous, hygienic surface, it pushes away liquids and residue resulting in a low maintenance, easy to clean, long-lasting material. It's no wonder this hardworking granite composite sink collection is one of our most popular. Blanco Composite Sink, PRECIS™ SILGRANIT® Collection, Rectangle Shape, 28 in Bowl Length, 16 in Bowl Width, 9-1/2 in Bowl Depth, 3-1/2 in Drain Opening, 1 Bowls, 30 in L x 18 in W Overall, Under Mounting, Granite, Cinder