Truly a work of art by Mother Nature, Novatto's petrified fossil wood vessel will add special character and charm to your bath. These come from around the world, giving you a one-of-a-kind masterpiece. Natural stone cannot be compared to everyday synthetic porcelain and ceramics. Honed and hand polished to perfection, each irregular 17-inch vessel is beautifully unique in tones of brown and tan. Formed by Mother Nature, each sink will vary in color, shape and size. These are designed for above-counter installation with standard U.S. plumbing connections. They have a 1.75-inch drain opening for standard U.S. plumbing connections.