Houzer MADISON N-175U Onyx Madison Series Undermount Granite Double Bowl Kitchen Sink, Onyx Overall size 33" X 20.5", Bowls 14.56" X 18" X 9.5"D(Left) 14.56" X 16" X 9.5"D(Right) Quartztone Granite Extremely tough and durable surface with 80% Quartz Fits 36" cabinet Non-porous surface, silky to the touch, Optimum hygienic protection.