Transolid RUSS3118-12 Radius 31.75-in x 19.125-in x 9.5-in Granite Super Single Undermount Kitchen Sink, Espresso 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 19.125" x 9.5" ; Inner Dimension: 29" x 16.375" 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 ELGU13322MC0, Swan QUSB-3322.170, Blanco 441771, and Houzer N-100XLU MOCHA sinks with at least 30% better thermal and impact resistances. 1 Basket strainer required (not included) for standard 3.5" offset drain location