The Ocean Hunter Spear Shaft is the perfect choice for spearfishing enthusiasts. Crafted from high quality spring steel or marine grade stainless steel, this spear shaft is designed for durability and strength. Its smooth loading notches make it ideal for use with Dyneema type bridles. The spring steel option features a zinc coated tri-cut point and flopper, while the marine grade stainless steel version has an M6 thread for a 5 barb cluster (not included). With its superior design and quality construction, the Redback Spear Shaft is sure to be a reliable and powerful addition to your underwater arsenal.