... armrest,tilt mechanism,nylon base 3.size:69x72x112-122cm 4,more color to choose. 5.OEM accept pu leather,hot sale,fashionable ... ,more colors,ISO,SGS office chair NF-3017 1.material:pu ... , pu leather office chair, hot sales and fashionable office chair, more colors, ISO, SGS, office chair MY-3017