HEAVY DUTY COMMERCIAL: Commercial grade hinge, corrosion free stainless steel check hinge posts and hardware DURABLE: Solid plastic suitable for commercial application that is non-porous, scratch resistant and won't stain or discolor STABLE / SECURE: Seat is anchored into position with impact absorbing hinges. Molded bumpers won't fall off and are hygienic, and color-matched. SUPERIOR FIT / EASY TO INSTALL: Easy to install and fits on all regular round toilet bowls including Kohler, American Standard, TOTO and many more MADE IN THE USA