The Granada drop-in sink is one of Novatto''s most popular copper sinks. It is a great combination of vessel design with undermount functionality. Each sink is hand-hammered from recycled copper and built by skilled artisans. Through years of experience passed down from previous generations, the end result is a one-of-a-kind masterpiece. Made from 16 gauge copper, this round sink sits above the counter two inches for unique luxurious design. The copper has a warm antique finish and is amazingly easy to maintain. Fingerprints do not show as they will on stainless steel and other metals. For basic cleaning, simply use soap and water. Copper has a "living finish" and its patina will continue to develop character over time, meaning it may become a richer, darker color.Standard 1.5 inch drain opening for U.S. plumbing connections. Suggested Novatto oil rubbed bronze strainer drain (STD-ORB) will compliment beautifully. Due to the handcrafted nature of this sink, it will vary in appearance, finish, texture, hammering and other details. Dimensions may vary up to 1/2". We strongly suggest you receive the actual piece before making any installation cuts. Made with the highest standards of quality and creative design, Novatto sinks add artful function and charm to any bathroom. Just add water and enjoy the limited lifetime warranty. Supreme packaging and boxing ensure damage-free delivery.Round drop-in copper sink with apronArtisan hand crafted in MexicoUnique antique hammered finish16-gauge recycled copper constructionOuter dimensions: 17 x 6- inchesInner dimensions: 15 x 5.5-inches1.5-inch drain opening2-inch tall apronStandard plumbing connectionLimited lifetime warrantyDrop-in installation