This Stonewood toilet seat offers a versatile design that complements many bathroom styles. Compatible with most elongated one- or two-piece toilets, the compression-molded wood seat provides a substantial look and feel. This seat features innovative technology that makes it easy to install and clean. Kohler® Toilet Seat, Stonewood®, Elongated Bowl, Quick Release Hinge, 18-5/8 in Bolt to Seat Front, Closed Front, Plastic Hinge, 5-1/2 in Mounting Hole, 14-3/16 in Width, 1-1/16 in Thickness, Wood, Biscuit