GripLock rubber securely holds skis or snowboards of varying sizes; Slide out design makes for easy loading and unloading; Both Grip and Flip Mount System are fully locking; Flip mount system allows for quick install or removal; Grip 4 comfortably fits 4 sets of large skis or 2 snowboards, grip 6 comfortably fits 6 sets of large skis or 4 snowboards; Large intuitive handle; Metal outer shell and premium gloss metallic powdercoat provide unmatched strength and finish