Item Descriptions:-Test: 25lb, Diameter: 2mm/0.08inch. Areas of application: perfect for use in fresh water and salt water.-These stainless steel rings are very small, smooth and seamless connectors between your leader and tippet.-Tie one on the end of your leader, then tie the tippet onto the ring.-May be used on any leader system and are excellent for tying droppers. Because the rings are so small and easy to lose, we sell them strung on a wire swivel.-Made of stainless steel material, rust-proof and corrosion-resistant, strong and durable.Package:30x Tippet RingsItem Specifications:Material:Stainless steelDiameter:2mm/0.08inchTest:25lbColor:Black nickel