Made of stainless spring steel. Length 70 mm. The diameter of the wire is 2 mm. Estimated tensile strength – 100-150 kg. Designed for fastening a harpoon from under a reel cord, for convenient and quick extraction of a harpoon from a fish’s body. In addition, a marker buoy. The design of this carbine has passed the test of time. He uses underwater hunters all over the world in salt and fresh waters.