Top-of-the-line HullGuard padding uses EVA foam for superior kayak protection. Plus, the rack folds down when it's not in use, for better aerodynamics and easier access to your garage. SteelCore construction utilizes a steel substrate encased in durable foam padding. Integrated ramp system assists in loading your boat. Oversized adjustment knob for easier twiddling with wet hands. Carries a touring, recreational or whitewater kayaks. Fits round, square and most factory crossbars.