(1) An electrical system able to function between 12V and 24V.
(2) An adjustable caster assembly to support the front of the trailer when not coupled to the towing vehicle.
(3) Manually operated parking brakes used to secure the trailer when stopped or parked.
(4) Two wheel single axle with leaf spring suspension to absorb road shock.
(5) Air/hydrauIic brake system which receives air pressure from towing vehicle.