Perfect for commercial applications, this Lustra elongated toilet seat features extra-heavy construction and a chip-resistant polypropylene finish that will not stain or peel This model has an open front and includes a check hinge that lets the seat stand up at 11 degrees beyond the vertical position. Kohler® Toilet Seat, Heavy Duty, Lustra™, Elongated Bowl, Self-Sustaining Self-Sustaining Check Hinge, 19-1/16 in Bolt to Seat Front, Open Front, Plastic Hinge, 5-1/2 in Mounting Hole, 14-1/4 in Width, Polypropylene, White