Transolid RUDO3120-01 Radius 31.75-in x 20.75-in x 9.5-in Granite 1-3/4 Offset Double Undermount Kitchen Sink, White Granite Material made by the union of 80% quartz and 20% acrylic resin. It is durable and resistant to scracthes, dents, chips and impacts. Stain resistant, non-porous material is hygenic, resistant to bacteria growth and easy to clean up. Heat resistant up to 650 Degree F. Overal Dimensions: 31.75" x 20.75" x 9.5" ; Inner Dimension (Left Bowl): 14.4375" x 17.4375" x 9"; Inner Dimension (Right Bowl): 12.4375" x 14.9375" x 9"; Minimum Cabinet Size: 33" Undermount installation for seamless visual flow from the counter-top to the sink. This sink is designed and engineered in Italy and comparable to Elkay ELGU250RWH0, Swan QU03322RC.075, and Houzer M-175U CLOUD sinks with at least 30% better thermal and impact resistances. 2 Basket strainers required (not included) for standard 3.5" rear drain locations in each bowl which provide extra usable space under the cabinet