Easy to install this carrier onto my crossbars and I love how it slides out and drops down the side of my car. So easy to slide my 14' kayak onto the cradles and get it strapped down. Unfortunately, I found I did not have the upper body strength to lift the loaded carreiers high enough to slide back onto top of car. This is a terrific carrier if you have someone to help, but for me, a female mostly solo paddler, it is a struggle.