Front wheels: PVC air-free tires, aluminum alloy wheels; Rear wheels: aluminum tires, equipped with anti-rolling devices with high safety performance Seat Cushion: Flame Retardant Tendon Fabric, with Seat Belt Motor: brushless motor, flashlight switching dual-purpose Battery: removable lithium battery or lead-acid battery The armrest can be lifted, which is convenient for getting on and off the car Brake system: motor intelligent brake + manual brake.