Italian made 17-4 PH hardened stainless steel spear shafts. 7mm diameter. 3 tig welded mini shark fins tabs strategically spaced, starting 5cm from the rear of the shaft. An additional cheater tab set 25cm forward, and a third 35cm towards the tip. This tab configuration makes initial loading and powering down much easier. Ideally suited for roller muzzle guns. Shooting line attachment point at the rearmost tab. Single flopper-1.2mm thick, 85mm long, machine pinned, hand tuned.