... school, Training center, Stadium,Sport,Arena,bleacher, Platform,stand and Grandstand.The detailed dimension of our chairs:(1) chair ... injection molded plastic shell(poly propylene).2. Seat cushion and back cushion are made of molded PU(polyurethane) foam upholstery with ... 5-year warrnty for our Auditorium seat,Plastic auditorium chair,Cushion auditorium seating.8. Fire retardant standard: CA117, BS- ...