Abstract: A cost-effective system and method for quickly and easily moving a fully loaded shelf unit is provided. The shelf unit includes first and second opposing vertical feet supporting the shelf unit on a ground surface. The system and method employ a first prying arm, a second prying arm, and a rolling device. The first and second prying arms each include a pushable member and a lifting member joined to each other. The rolling device includes first and second end supports and an intermediate cross bar extending between the end supports. The rolling device includes a pair of casters mounted to an underside of the cross bar for allowing the rolling device to be rolled along the ground surface. The end supports are located closer than the cross bar to the ground surface when the rolling device is positioned with its casters contacting the ground surface. To move the shelf unit, the prying arms are used to lift the respective vertical feet at least partially off the ground surface.

Abstract: The subject trailer includes a single tubular for-and-aft horizontal tow-bar towed at its front end by a tow ball hitch. Welded vertically to a rear end portion of the tublar tow bar is a tubular mast having pulleys guiding a cable from a winch on said tow bar up and over said mast and connecting to a towing hammock for attaching to a vehicle to be towed. The hammock has a central pair of flanges guiding the hammock vertically on the tubular mast while allowing the mast to rotate 30.degree. on its own axis between the flanges while bolted to the hammock after the latter being hoisted to the vehicle towing level. Welded to the tow bar is a rigidly symmetrically laterally extending tubular axle co-axially rotatably mounting a pair of #15 sized balloon tired wheels on the opposite axle ends, causing the trailer to track straight behind the towing vehicle by flexing, both at the vertical tow-ball socket joint and at the vertical 30.degree. mast-hammock-flange-and-bolt-joint.