Advanced Elements Backbone 4-Piece
If you buy a compatible inflatable kayak the backbone is essential to achieve 99.9% tracking of a solid shell kayak. It only takes 2 minutes to assemble and properly align in the kayak. I align by eye using the bow and stern carry handles as alignment guides. For storage the backbone, separate 4-piece paddle, separate bilge pump, and gloves all fit into the mesh bag which comes with the backbone.