Abstract: A manually-operable coupling assembly may include a primary coupling and auxiliary couplings. Both the primary and auxiliary couplings preferably include an elongated strap with a clamp attached to a distal end thereof. Each clamp may include a first and C-shaped region with a cavity and socket formed therein. A second C-shaped region may be pivotally mated to the first C-shaped region and may have a male finger with a ball bearing protruding outwardly from a distal tip thereof. The ball bearing may penetrate into the socket and become interlocked so that the first and second C-shaped regions may remain in a closed position. A spring-actuated stop block is calibrated to withstand varying pulling forces during transport as needed.