As an industry leader in glass vessels, Novatto uses advanced technology to produce unique glass vessel sinks with unmatched structural integrity and longevity. Constructed of thick 3/4" high tempered glass, the Pallina is a best-selling round vessel sink with a beautiful marbled black and white design. For cleaning, a soft cloth with mild soap and water or a non-abrasive glass cleaner is recommended. Standard 1.75-inch drain opening. Suggested Novatto pop-up drains: PUD-ORB (oil rubbed bronze), PUD-BN (brushed nickel), PUD-MB (matte black) and PUD-CH (chrome). Also a mounting ring is highly recommended for added stability. Suggested matching Novatto mounting rings: MR-001ORB (oil rubbed bronze), MR-001BN (brushed nickel), MR-001MB (matte black) and MR-001CH (chrome). Made with the highest standards of quality and creative design, Novatto sinks add art and function to any bath or powder room at an affordable price.Round vessel sink with black and white marble double-layer designMade with high tempered glassScratch resistant and non-porousAbove-counter installationStandard U.S. plumbing connectionsOuter dimensions: 16.5 x 5.75-inches tall 1.75-inch drain opening for standard vessel drainLimited lifetime warranty