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. Solid polypropylene plastic. Elongated open-front seat. Ergonomic contour adds additional comfort. Integrated handle allows user to easily raise and lower the ring. Stainless steel hinge arms and hardware. Heavy duty. Without cover. Quiet-Close‚Ñ¢ check hinge will slowly close with check hinge functionality. Toilet seats are not returnable to Kohler Co. if opened or outside of original packaging.