This Jones Stephens C110SSC90 elongated open-front toilet seat (less cover) is made of injected molded polypropylene plastic with UV protection, making this seat last long. It comes with a black finish that maintains the clean look of the toilet. Also, to add stability to the toilet seat as it is lowered to the bowl, this Deluxe replacement toilet seat is integrated with 304 stainless steel hinges, built-in bumpers, and an anti-skid rubberized bushing. Another interesting feature of this seat is its design. It has an ergonomically curve design that is comforting enough for everyone to use. Also, this toilet seat is constructed with materials containing an anti-microbial ingredient for added safety. For a clean installation look this C110SSC90 toilet seat's external self-sustaining hinges are hidden by the seat. This toilet accessory is ideal for commercial use because of its extra heavy-weight and posture curve design. Might as well grab one of these toilet seats and experience the comfort that is waiting for you!