Wau's backrest is adjustable for top and lumbar depth, using a white or black outer shell, gray inner shell, lumbar knob, and caps product of polypropylene, that is a hundred% recyclable. The again frame is manufactured https://haimahvwv520968.wikicommunications.com/4500702/5_tips_about_merryfair_wau_chairs_you_can_use_today