An exclusive design, this Hand Hammered Brass Plated Trough Sink is handcrafted making each sink slightly different than the other. The Welds in the sink are done by hand to give it a truly artistic finish. This sink will naturally patina if left untreated.• Special care and maintenance required. Slight variations may exist. Includes an Overflow. Uses a standard lavatory drain 1.5"Exterior Dimensions: 23.5" x 15.5"Interior Dimensions: 21.5" x 13.5"Glowing brass finish will coordinate perfectly to your rooms decor.Hand hammered, individual variations will exist.Nominal dimensions, handmade sink measurements may vary by up to 1and4 ''''.Brass requires special care and maintenance.Mount Type: Undermoount with overflowBowl Type: Single BowlNumber Of Bowls: 1Sink Shape: RectangleDrain Opening: 1.5Drain Included'': NoDrain Required: Standard 1.5" - compatible model NS-UDBG-OF sold separately