This wheelchair has been designed with folding function and detachable battery box to comfort storage and transportation, PU flat free tyres, 20AH rechargeable batteries, different colors(ie.: Sugar red, diamond blue, etc. ), adjustable height/width of armrest, unique main-frame design and so on, provide an excellent feeling of your driving and safety. Also the easy operating elec-control system plus anti-bacteria/non-flammable upholstery material combine with aluminum alloy make sure you a stable and comfortable driving environment.