Rena, from the exclusive hand-painted vessel collection of Novatto. Constructed of high-tempered glass, this oval sink has a unique hand-painted design of black and copper tones. Tempered glass cannot be compared to everyday synthetic porcelain and ceramics. Novatto uses advanced technology, including computerized glass processing, to produce glass basins with unmatched structural integrity and longevity. The Rena has a standard 1.75-inch drain opening. Just add water and enjoy Novatto's limited lifetime warranty.