
260cm 350cm Roller Pole Spear Spearfishing Hawaiian Sling Diving Harpoon Hand Speargun With Slip Tip Blue Hunting Spear
260cm 350cm Roller Pole Spear Spearfishing Hawaiian Sling Diving Harpoon Hand Speargun With Slip Tip Blue Hunting Spear Parameters: Material: stainless steel tip ,Carbon Fibre pole Weight: 700g Whole Length: 260cm,350cm Diameter: 7mmfor fork ,16mm for pole The slip Tip is made of 17-4PH stainless steel, which has magnetism due to heat treatment. This is normal. 17-4PH stainless steel has high hardness, corrosion resistance, and will not rust in seawater.Relevant information can be mentioned in Google or other relevant professional papers.It canbe testin seawater to see if there is any rusting issue. One set/lot (as the picture ) the pole is made of carbon fiber , as the Advantages of Carbon Fiber as follow: Carbon fiber composite materials have higher fatigue strength, with the fatigue strength of steel and aluminum being 30-50% of the tensile strength, while carbon fiber composite materials can reach 70-80% The significant characteristics of carbon fiber are light weigh