After extensive research, Happijac has developed an innovative Frame Mount Tiedown system that puts leverage to work for you. This design combines frame strength with sound engineering principles to create an I-beam truss structure that literally makes your camper an integral part of the truck. The Happijac Frame Mount Tiedown system combines the superior, time-tested design of Happijac tiedowns with our patented Direct-to-Frame™ mount, providing you with unsurpassed strength, handling, and ease of use. While other tiedowns may "hold your camper down", only Happijac tiedowns prevent camper movement in all directions (up-down, side-to-side, and front-to-back). With Happijac's unparalleled design, you'll enjoy the peace of mind that comes with owning the strongest, safest, most secure tiedown system on the market today!