Engineered to ensure a proper fit on one- and two-piece toilets, this Brevia seat complements a wide variety of round-front toilet designs. Sturdy plastic construction resists staining, chipping, and fading, while the ergonomically contoured seat enhances comfort. This seat features innovative technology that simplifies both cleaning and installation. Quick-Release hinges allow seat to be unlatched from toilet for easy removal and convenient cleaning; no tools required. Quick-Attach hardware for fast and secure installation. Color-matched plastic hinges. Grip-Tight bumpers hold seat firmly in place. Contoured seat for user comfort. Round closed-front seat. Toilet seats are not returnable to Kohler Co. if opened or outside of original packaging. For non-residential application recommend using K-7673 or K-20111. Plastic