Deluxe Kayak Car Rack Kit Durable mini cell foam cushions your boat and protects your vehicle Your boat secures to the foam blocks with 9-foot padded straps You can then pop them on factory rack load bars or set the blocks directly on the vehicle roof Then attach the 14' J-hook Straps to the bow and stern of the boat and affix them to the front and rear of the vehicle A 15-foot padded strap provides secure center tie down support