Hobie Tandem Island Cradle Set makes sure your kayak has a contour fit on the trailer. Hobie kayaks are innovative in every way, including shape, which is why this rack attachment was made specifically for the Tandem Island. Contoured shape also protects the plastic from warping when tied tightly to your rack. Don’t let traveling keep you from getting on the water, amd make transport easy with the Cradle set! Hobie Part # 72020402.