Truly a work of art from Mother Nature, Novatto's petrified wood vessels will add character and charm specific to your bath. Our petrified wood vessels come from around the world, giving you a one-of-a-kind bath masterpiece. Natural stone cannot be compared to everyday synthetic porcelain and ceramics. Honed and hand polished to perfection, each irregular vessel is beautifully unique. Because petrified wood is from Mother Nature, each sink will vary slightly in color, shape and size. These sinks are constructed for above-counter installation. They have a 1.75-inch drain opening for standard U.S. plumbing connections. Suggested Novatto strainer drains: UPD-ORB (oil rubbed bronze), UPD-BN (brushed nickel), and UPD-CH (chrome). Since each sink varies will send a picture of the one we are sending prior to shipping for approval. 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. Novatto strives to provide a superior product with exceptional qualities and unique innovations that professionals and homeowners trust.