This style is made for heavier or double handed boats, such as the Gig Harbor 15′ Maine Lobster Boat. DYNAMIC DOLLY, TYPE 5 This style is made for heavier or double handed boats, e.g., Club 420, Capri 14.2, Coronado 15, larger inflatables or aluminum boats with motors, and more. Boat-specific tube and sling lengths provide a custom fit for each boat, enabling a balanced handle load and easy maneuvering. All joint fittings are through-bolted and designed for increased torque stability. Strong, 3\