Centoco 820STSS Extra heavy duty plastic toilet seat with open front and cover for elongated bowls. Includes self sustaining stainless steel. For commercial use. HEAVY DUTY COMMERCIAL: Commercial grade hinge,corrosion stainless steel check hinge posts and hardware. NO SLAM: Self-sustaining hinge holds seat in place and avoids slamming. 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 elongated toilet bowls including Kohler,American Standard,TOTO and many more MADE IN THE .