Nantucket Sinks' Italian granite composite sinks are a discovery as part of this collection. This double bowl top mount sink is the ultimate in functional design. Complete with loads of accessories, tempered glass cutting boards, a sliding stainless steel colander, and flip-top drains. Made from naturally sound-absorbing granite, this sink is 80% natural stone which helps it be both resistant to stains and scratches. The nonporous surface is hygienic and helps to ward off microbes. Because of its material composition, it can withstand thermal shocks and temperatures up to 560 degrees Fahrenheit.