Blanco 440199 Diamond 1-1/2 Bowl Kitchen Sink, Anthracite Finish 80% Solid granite, Silgranit material features the touch and feel of natural stone Required outside cabinet is 33" Flat deck is ideal for both drop-in and undercount installations Bowl depths are 9-1/2'' and 8" Limited lifetime warranty Overall: 33-Inch by 22-Inch Self Rimming or under mount installation Silgranit Left Bowl: 20-inch x 18-5/8-inch x 9-1/2-inch; Right Bowl: 9-inch x 16-3/4-inch x 8-inch Cutout size: 32-1/4-inches x 21-1/4-inches; Cutout corner radius: 5/8-Inches