| RiverS2sea Tungsten fishing products use only the highest grade in materials,High–Density Tungsten, i.e., 95% pure tungsten and 5% alloy (N i⁄ Fe ⁄ Co), which is environmental–friendly. With a density 18 (D18),our tungsten products are 1.8 times heavier than same size lead products, giving fishermen the advantages of minimal water resistance and better sinking effect. One of the hardest metals in the world, tungsten, when hitting the rock, makes more distinctive and louder sound that is irresistible to fish. |