SportRack SR5527 Adjustable Foam Kayak Carrier, 24-Inch, Black Fully adjustable foam blocks can be positioned to accommodate a full range of kayak widths (16" to 24" spacing) 2 non-skid underside protects the vehicle finish Includes 2 straps to secure foam and bars to the vehicle Includes bow and stern tie downs to ensure kayak is secured to the vehicle Fits SportRack Roof Rack Systems, square, round and most factory racks