1,options:cupholder,writing pad,seat No. 2, OEM service 3 ,5 years warranty 4,Molded foam and high desity plywood ♣The specifications of our auditorium chair: 1. Outer cover: plastic shell (poly propylene,injection molded): Absorb sound;anti-aging; anti-impact;anti-UV; anti-fading.2. Outer upholstery: Fabric,PU leather,Artificial leather or Real leather: Anti-abrasion; dirty proof; water proof; ...