1.The world's best-seller economical wheelchair 2.well-welded A3 steel frame with stainless and aging-resistant capabilities after electroplating 3.Durable 8''PVC universal rront wheels and 24'' solid rubber rear wheels with excellent shock absorptive capability 4.Foldable wheelchair for easy transporting and carrying in less space 5.Ergonomic design based on the psysiological curvature of human waists providing users maximized comfort 6.Aluminum footplates with eccentric devices for lock and easy height adjustment