The F3 Corpus is an Electric front wheel drive wheelchair for outdoor and indoor driving. It is intended for people with physical disabilities. The wheelchair consists of a chassis and a seat. The chassis contains the wheelchair's electronics, power supply and drive functions. The seat consists of a seat frame, seat plate, backrest, armrest,leg rest, seat lift with many accessories and options such as a headrest, calf rest. permobil adjustable tray, also the best ROHO air cushion with sensor ready technology. power wheelchair charger included. Base length 40" Base width 24" Control panel permobil joystick panel r net LED. ICS seat control panel. Also has ConnectMe technology that provides communication between the permobil wheelchair and cloud service. It is used for communication for the transfer of data between the wheelchair and a bluetooth device such as a cellphone. This chair was used very little for 7 months. Like new top of the line $20,000.00 new retail price for only $5,000.00