Blanco 518911 Silgranit II Rondo Bar Sink, Cinder 80% solid granite, silgranit material features the touch and feel of Natural stone Bowl depth 6-5/8-in Required outside cabinet is 18-in Resistant to scratches, Stains and all household acids and alkali solutions Limited lifetime warranty Resistant to scratches, stains and all household acids and alkali solutions 80% solid granite Heat resistant up to 536-DegreeF