This UPC Certified offset double bowl undermount sink is made of high quality 18 gauge SUS304 Stainless Steel. The offset bowls aid in kitchen prep, and are designed for convenience and style. The large (right) bowl measures 15-3/4'' L x 18-3/4'' W x 9'' D, and the small (left) bowl measures 13'' L x 16-1/2'' W x 7-1/4'' D. A strong and quiet sink featuring an added layer of insulation on the bottom to reduce sound and reinforced plates on the sides and bottom help prevent bending and buckling. The brushed satin finish is easy to clean and helps camouflage small scratches that could appear overtime of daily use. Strainer (STRAINER-200) is sold separately.