The Stinger Load Assist Module attaches to your existing SeaWing Kayak Carrier to create a great transport system that will protect your vehicle and safely load a kayak. Each module includes the Extension Frame, Mounting Plate, V-Block and Mounting Hardware. Installs in minutes with no special tools. The frame extends up to 25” back from the center of the rear crossbar and works well with most vehicles. Includes Assembly Instructions and Lifetime Limited Warranty.