The Itte Tungsten Sinker SK-51 from Owner is a tungsten weight that allows weight change with a single touch! There will no longer be the need to use pliers, nor will you have to cut the line, but thanks to the practical hook and the solid ring system, you can change weight in a second. The elongated octahedron teardrop shape ensures excellent flight distance, sinking speed and sensitivity. Inside the package there is a round solid ring.