Having spare parts for your gun or sling is the only way to assure you won't get skunked on a spear fishing trip. Constructed of corrosion resistant 17-4 (spring) stainless each JBL shaft is hand-tuned for alignment then heat-treated for maximum hardness to reduce flex and provide optimum energy transfer. The shaft for the Reaper 130cm Spear Gun (see SKU: JBL4R130) comes with a point with flopper (wing) and measures 66" x 9/32" (168 cm x 7.11mm). Spear shaft has a 2-sling capacity and makes a great save a dive kit item.