Open front with cover, round, heavy-duty, injection molded solid plastic toilet seat. Features four molded-in bumpers, stainless steel side arms with textured plastic grips with finger grooves, check hinges with non-corrosive 300 Series stainless steel posts and pintles and STA-TITE^® Commercial Fastening System™. Seat contains DuraGuard® Antimicrobial Built-In Seat Protection™. This seat complies with American National Standard Z124.5 Toilet (Water Closet) Seats as a class Commercial Heavy Duty. Side arms are ADA tested to 250 pounds.