BLANCO stainless steel is heat, rust and corrosion resistant, while impervious to water stains and calcium deposits Engineered with elegant 30 mm radius corners that are smooth to the touch and easy to clean Undermount installation makes for easy clean-up without dirt or grime building up around the rim Sound dampening insulation reduces noise from garbage disposals and dishes Optional accessories include grid (item #237141) foldable drying mat (item #238483) and decorative drain cover item (item #517666)