The Happijac Camper Frame Mount Tie down System consists of 3 components and requires the separate purchase of each component. Most vehicles require the use of a stabilizing bar along with the Frame Mount Tiedown. The individual vehicle item description will tell you which bar, if any, is required.
Most any turnbuckles can be utilized as long as they meet your camper manufacturers requirements.
Frame Mount Tiedowns: Component A
Turnbuckles: Component B
Stabilizing Bar: Component C