Granite material made by the union of 80 quartz and 20 high-performance UV-stable acrylic resin. Overall dimensions 31. 75-in x 19. 25-in x 9. 5-in inner dimension Left Bowl 16. 5625-in x 15. 9375-in x 9-in inner dimension Right Bowl 10. 625-in x 15. 9375-in x 9-in minimum cabinet size 33-in. Undermount installation for seamless visual flow from the counter-top to the sink. Designed and engineered in Italy with a rotational manufacturing technique that delivers at least 30 better heat and impact resistance than many competitors. Comparable to Swan QULD-3322. 077 and Blanco 441128 sinks. Non-porous surface is resistant to bacteria growth reduces the need for cleaning with harsh chemicals and is 100 food safe. Lifetime limited warranty. Drain not included covered flip-top strainer model 2210R-PS or 2210R-BS and disposer strainer model 4010-PS or 4010-BS sold separately.