Highly durable and warranted free from factory defects for 7 years. Constructed of heavy duty 7/8" tubing and 18 gauge metal. Side bars aligning the chairs when stacked add extra protection to the frame. Rear and under-seat reinforcement bars add strength to the frame. Two-piece back has no exposed fasteners. Epoxy powder coating assures chip and corrosion resistance. Its high density 1.8 lb. foam gives high resiliency. 2" Waterfall style seat is designed for extra comfort. Non-marring all purpose glides are sure not to leave any marks on your flooring. Handhold for easy moving. Designed to last.