Featuring sturdy, chip-resistant polypropylene construction and a finish that won't stain or peel, the Lustra toilet seat is ideal for commercial or institutional applications. This round, open-front seat features check hinges that allow the seat to stand at 11 degrees beyond vertical. Kohler plumbing products mean beautiful form as much as reliable function Round open-front seat. Sturdy, chip-resistant polypropylene with a finish that won't stain or peel Check hinge. Toilet seats are not returnable to Kohler Co. if opened or outside of original packaging.