The Heavy Duty RL210 is a Rhino-Rack proven product engineered to fit perfectly in the protruding side gutters of your vehicle's roof. This design feature enables you to easily clamp the RL210 into place before hitting the road and, if desired, just as simply remove the roof system once the journey is complete. The strength of the RL210's Leg Clamp is proven through a Lifetime Warranty and heavy off-road Australian testing. With Rhino-Rack's strongest Heavy Duty Crossbar atop the RL210 you will be ready for any adventure.