Kraus Quarza 33" Undermount 50/50 Double Bowl Granite Kitchen Sink in Black OnyxBeautiful and versatile, Quarza Series granite kitchen sinks are made from high quality quartz composite material that offers the sophisticated look of natural granite. With gently rounded corners and a smooth non porous surface, these sinks add elegant style to any kitchen with the added benefit of easy maintenance. Undermount sink installation creates a seamless transition from sink to countertop and simplifies cleanup by letting you wipe water and