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 Elite Woody Custom Spear Gun measures 28" x 9/32" (71.12cm x 7.11mm) and has 6mm threaded end with point and wing tip. Spear shaft has a 2 sling capacity and makes a great save a dive kit item. Shaft is covered by a 12 month limited warranty.