YY6137 apply the latest technology CFTM structure of Yumeya and is a sincere work of banquet chair, the frame is made of 1.2mm steel, PU for the cushion, and the back is made of wear-resistant fabric that can withstand 30,000rut. The luxurious material allows the chair to withstand 500lbs of weight and maintain a good appearance for years and there is 3 back options to feed your need.