The P758 Butterfly Blue Granite Vessel Sink Is Made From Natural Granite. The Sink Is Carved From A Large Block Of Granite And Hand-Polished For A Smooth, Easy To Clean Finish. This Sink Has A Green-Colored Base With Large Deposits Of Blue And Tan Throughout. Since Granite Is A Natural Stone, The Details Will Vary In Color And Pattern From Sink To Sink. A Matching Stone Waterfall Faucet Is Available To Correspond With This Sink. The Overall Dimensions For The P758 Are 15 3/4' X 15 3/4' X 5 3/4' And An 18' Minimum Cabinet Size Is Required. As Always, Our Stone Sinks Are Covered Under A Limited Lifetime Warranty For As Long As You Own The Sink.