Inspired by the outdoor elements, driven by functional design. Novatto's travertine vessel sinks will add charm to any bath. Our travertine vessels come from around the world to become your one-of-a-kind bath masterpiece. Honed and hand polished to perfection, this 17-inch round vessel will be your bath's centerpiece. Beige travertine is very consistent and little variation should occur from sink to sink. Designed for above-counter installation, these vessels have a 1.75-inch drain opening for standard U.S. plumbing connections. Included with the sink is Novatto's matte black umbrella drain (UPD-MB), constructed of solid brass for strength and durability.For easy maintenance apply the included Glacier Ice sealer. This will help seal the pores in the stone to prevent water spotting. For best cleaning results, a soft cloth with mild soap and water or a non-abrasive stone cleaner is recommended. Novatto strives to provide superior products with exceptional qualities and unique innovations professionals and homeowners trust.