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 inhibiting bacteria growth by up to 98% EASY-TO-CLEAN: Baking soda and a sponge are all you need - no harsh chemicals required OPTIONAL ACCESSORIES: Grid (item #239955), cutting board (item #235010) and decorative drain cover (item #517666) 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