Blanco 441468 Silgranit II Diamond Single Bowl, Cinder Undermount installation; clips included 80% solid granite, silgranit material features the touch and feel of Natural stone Pre-drilled for single hole faucet Ideal for complementary secondary sink Highly scratch and chip-resistant; heat-resistant to 536 degreef Resistant to scratches, stains and all household acids and alkali solutions 80% solid granite Heat resistant up to 536-DegreeF