Design and Details Carry 1 boat in J-cradle position or 2 boats in vertical, stacker position Fully assembled out of the box Tool-free installation Fits Yakima round, square, factory, or aerodynamic bars Adjust the upright position with the easy-to-use integrated cam lever Folds flat when not in use Includes Heavy-Duty straps and Bow/Stern Tie-Downs SKS Locks sold separately Supports one boat up to 80 lbs or two boats with combined weight of 110 lbs or less Minimum crossbar spreads of 24" or more Folds down when not in use for better aerodynamics and easier access to your garage Multiple settings with cam-lever operation allow you to carry one boat in J-Cradle position or two boats in vertical position Integrated ramp system makes it painless to load your boat Tool-free install to round, square, factory or aerodynamic bars with universal attachment Includes anti-rotation adapter for round bars Soft over-molded base with grooves cushions the boat and allows sand and grit to wash away