1. seat width: 16", 18",20",22",24" 2. Load capacity: 250-450lbs 3. rear wheel: 8 spokes PU mag wheel 4. Certificate: 510K OverviewThis wheelchair is representative American standard type, is very popular. it has one complete series with different configuration as followed excel table. we already have 510K number for our wheelchairs, so we are looking for american customer to cooperate, we can ...