Transolid RTSS3322-01 Radius 22-in W x 33-in L Granite Super Single Drop-in Kitchen Sink with 1 Pre-Drilled Faucet Hole, 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: 33" x 22" x 9.5" ; Inner Dimension: 29" x 16.375" x 9"; Minimum Cabinet Size: 33" Top mount (Drop-in) installation with a fine finished rim to make it a beautiful point in kitchen. This sink is designed and engineered in Italy and comparable to Elkay ELG13322WH0, Swan QZSB-3322.075, Blanco 440195, and Houzer V-100 CLOUD sinks with at least 30% better thermal and impact resistances. 1 Basket strainer required (not included) for standard 3.5" offset drain location