Our PL-250 is now with new seating and motors. The seating, battery case, and frames can be separately for convenience. It is designed as indoor use in apartment, hospital, house, office, so on..... it is easy to control in the indoor condition. The armrest is with flip up and width adjusted functions. The seat angle can be adjusted 45 degree per one position. It is easy for the office users to reach something next to them no matter right or left side. Please have a look for attached.