With the most colors, designs and durability, BLANCO has been the Leader in granite, granite-like and composite sinks for more than three decades. Our experience is your advantage. SILGRANIT - unequaled in beauty, unmatched in color versatility.Features:Anthracite finishDual Mount (Can be installed as drop-in or undermount)Bowl Depth: 6-5/8''Required outside cabinet: 18''Cutout Size: 16-15/16''80% solid graniteHeat resistant up to 536-deg FUnsurpassed cleanability backed by industry leading 7 patents!Resistant to scratches, stains and all household acids and alkali solutionsDrain NOT includedLimited lifetime warrantyLimited lifetime warrantyDimensions: 17.69 in. long x 17.69 in. wide x 6.63 in. highDrain NOT includedAssembly Required.