This shaft is designed specifically for the higher speed of the roller spearguns. The shark fin in the forward position is to maintain accuracy. Spear shafts made from 17-4 stainless steel, heat treated to increase hardness and prevent bending. 
- Two Shark-fin band tabs 
- One shark fin monofilament tab
- Hole for up to 500Lb Monofilament. 
- Designed for Euro Mechanisms