Inspired and driven by the forces of Mother Nature, Novatto's absolute granite vessel will add character and charm to your bathroom. Natural stone cannot be compared to everyday synthetic porcelain and ceramics. Honed and hand-polished to perfection, this oval slipper vessel will become your bath's one-of-a-kind masterpiece. Black granite is very consistent and little variation should occur from sink to sink. These vessels are designed for above-counter installation with standard U.S. plumbing connections. For best cleaning results, a soft cloth with mild soap and water or a non-abrasive glass cleaner is recommended. A stone sealant should be used to help protect the surface and allow for easier cleaning. Included with the sink is Novatto's umbrella drain (UPD-MB), constructed of solid brass for strength and durability. Finished in matte black, the drain assembly has two rubber seals, a plastic spacer, and brass fastener. Just add water and enjoy Novatto's limited lifetime warranty. Supreme packaging and boxing ensure damage-free delivery. Novatto strives to provide superior products with exceptional qualities and unique innovations that professionals and homeowners trust.