Inspired and driven by characters of Mother Nature, Novatto's absolute black granite vessels will add charm to your bath. These 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 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 umbrella drains: UPD-ORB (oil rubbed bronze), UPD-BN (brushed nickel), and UPD-CH (chrome). 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. Just add water and enjoy Novatto's Limited Lifetime Warranty. Supreme packaging and boxing ensure damage-free delivery. Novatto strives to provide a superior product with exceptional qualities and unique innovations that professionals and homeowners trust.