OBD Heavy Duty Nylon Fish Threader has a large 24cm spike with a tri-cut point for better penetration and knurled grip. There is a strong coated stainless cable with heavy duty swivel at the other end. For using with medium to large fish, the fish threader normally attaches to float for securing fish after shooting. The strong double stainless wire gives extra strength against sharp teeth and sharks. Coated wire so no chance of splintering. Can also be used as a killing spinke prior to toggling fish.