UNI-ONE's two positions: high and low. In the high position, the wheelchair is used for motion and steering is done by weight shifting. In the low position, the wheelchair is used for getting on and off, and steering is done by the joystick. The image also includes the following text: High position (while in motion) Size (high position): Length: 650mm, Width: 580mm, Height: 920mm, Seat height: 700mm (current prototype model); Low position (while getting on) Steering by the joystick Size (low position): Length: 770mm, Width: 680mm, Height: 770mm, Seat height: 550mm (current prototype model)