Inspired and driven by characters of Mother Nature, Novatto''s absolute black granite vessels will add charm to your bath. Our absolute granite vessels come from around the world to become your one-of-a-kind bath masterpiece. Natural stone cannot be compared to everyday synthetic porcelain and ceramics. Honed and hand polished to perfection, this NOSV-AS oval stone vessel will be your bath masterpiece. Black granite is very consistent and little variation should occur from sink to sink. These sinks are designed for above-counter installation. They have a 1.75-inch drain opening for standard U.S. plumbing connections. Suggested Novatto strainer drains: STD-ORB (oil rubbed bronze), STD-BN (brushed nickel), and STD-CH (chrome).