UPM-Black Undermount Porcelain Bathroom Sink, Sink Only CONTEMPORARY STYLING  With classy undermount installation, this porcelain beauty flaunts a glistening, unobstructed oval shape with a flat bottom and a discreet overflow for safe filling VITREOUS CHINA  Its not just porcelain, its true vitreous china; an even more impervious and sanitary surface resulting from the addition of a special enamel coating INHERENT DURABILITY  Triple glazing and triple firing creates a basin which is triple resilient to abuse; no staining, unlikely chipping, easy to maintain GUARANTEED QUALITY  A Lifetime Warranty covers the sink