Features and Benefits: 3 Ton Hydraulic bottle jack Heavy duty safety chain for securing the wheels Tubular lifting arm 3-inch Rear swivel casters and rigid 3-1/2-inch front wheels Lift arms with ball bearing rollers Remove, transport and replace dual wheels and tire assemblies effortlessly. This 3/4 Ton Dual Wheel Dolly has a 3 ton bottle jack that provides over 6-1/2-inch of lift and tilts wheel assembly 7 degrees to prevent damage to wheel seal.