Nantucket Sinks large, double bowl offset bowl , undermount kitchen sink. Great contemporary design with the utility of a 60/40 sink. Crafted from 304 18 gauge Stainless Steel. Has a 3.5" drain opening. Nantucket Sinks stainless steel sinks have thick rubber dampening pads to dampen sound. Our finishing process helps keep our stainless steel corrosion-resistant to rust and oxidation. The satin finish makes daily maintenance a simple rinse. Basket strainer drains are included with sink. Features a limited lifetime warranty.