DURABLE MATERIAL: Patented SILGRANIT material is heat, scratch, stain, chip and impact resistant HYGIENIC+PLUS SURFACE TECHNOLOGY: Available on all SILGRANIT sinks, this acts as a protective shield against liquids and dirt EASY-TO-INSTALL: Can be installed as either a drop-in or undermount with installation clips included SOLD SEPARATELY: Basket strainer (item #441093) THIRD-PARTY CERTIFIED: Tested, certified and listed as a composite stone material, BLANCO is the only granite composite sink manufacturer that meets the composite stone IAPMO standards