Featuring sturdy, stain-resistant plastic construction, this Lustra toilet seat blends with any bathroom decor. Contoured for comfort, the seat fits most elongated toilets. This seat features innovative technology that makes it easy to install and clean. Kohler® Toilet Seat, Lustra™, 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 in Height, 17-13/16 in Length, 1 in Thickness, Polypropylene, Sunlight