... of front wheel: 40cm Electric Wheelbarrow Conversion Kit.· Box Dimensions : 43cm X 39cm X 45cm, Kit Gross Weight: 12Kg· 1 years warranty ... or 4Hours/24V8AH or 8Hours/36V 10AH battery pack· The kit includes motorized wheel,motor controller,speed throttle,aluminium battery box ... :great hub motor with battery, battery box, controller, switch etc. making the perfect electrical wheel barrow.