DECOLAV 1409-CWH Amabella Classically Redefined Rectangular Vitreous China Undermount Lavatory Sink, White Four walls taper inward towards the setback drain to form an inverted pyramid shape Constructed of vitreous china that is glazed and double fired for durability and stain resistance Product Dimensions: 20.98-inch W by 15.03-inch D by 7.91-inch H Designed for undermount use and installation Includes overflow