Kraus KGD-410B 24 2/5 inch Dual Mount Single Bowl Black Onyx Granite Kitchen Sink Constructed from 80% natural granite Looks and feels like real stone Naturally sound-absorbing non-porous surface is hygienic & heat-resistant Protected by thermal finishing process.Highly resistant to heat, chipping, and discoloration Standard 3.5 inches Drain Opening: Compatible with Standard Garbage Disposal Adapter.Minimum Cabinet Size (inches):27