These Cressi 6.5 mm diameter Steel Speargun Shafts are the original and replacement equipment for both Cressi Sioux and Apache spear guns. They are a notched, flopper style spear shaft. Having spare spear shafts on hand when out on the hunt is just good sense. Don't let a damaged spear shaft ruin a day or multi-day spearfishing hunting trip. Cressi's 6.5mm (0.26 in) diameter spear shafts are made from steel for strength, durability, low maintenance and long life. The spear shaft has a Tahitian style tip with a single flopper barb that hugs the spear shaft for maximum penetration, yet provides superior holding power once it penetrates the fish. These Cressi 6.5mm Spear Shafts are notched and ready to use on spear guns with 45 cm to 75 cm (17.7 inch to 29.5 inch) lengths and can accommodate 1 or 2 power bands. Spear shaft makes a great safe-a-dive kit item.