Virtu USA VST-2057-BAS Hercules Vessel Sink with Natural Shanxi Black Granite Natural Shanxi black granite stone vessel, Round shape Smooth polished finish inside with a roughed exterior, Transitionally carved in a timeless design, Seamless 1-piece construction Highly resistant to stains, Withstands hot temperatures, Tolerant to extreme temperature changes Installs over countertop in a freestanding configuration, Maximum dimensions: 13.8-Inch wide, 13.8-Inch deep, 3.9-Inch high, 2-Gallon capacity Drain hole template provided for easy installation, Requires vessel drain without overflow