Dekor Sinks 56499Q Buckingham Composite Granite Double Bowl Kitchen Sink with Four Holes, 33-Inch, Black Sink measures 33-inches x 22-inches x 9-inches deep; four pre-drilled faucet holes Dual mount installation; can be drop-in or under mounted; easy drop-in installation; no clips required Durable, hard, non-porous surface is heat, scratch and chip resistant Fiberglass backing provides additional strength and stability, helps maintain water temperature, and acts as a sound barrier for food disposers Composite granite sinks have stain and rust resistant finish and are easy to clean with non-abrasive cleaners