Featuring sturdy, chip-resistant polypropylene construction and a finish that won't stain or peel, the Stronghold toilet seat is ideal for commercial or institutional applications. Sturdy, chip-resistant polypropylene with a finish that won't stain or peel Ergonomic contour adds additional comfort. Integrated handle allows the user to easily raise and lower the ring The check hinge will stop the seat from leaning back and applying pressure on a tank or a flushometer Toilet seats are not returnable to Kohler Co. if opened or outside of original packaging.