Check the listing for details. Fishing Rolling Swivel with Coastlock Snap, 20 Pack 17LBS Line Connector, Silver. Condition: New. Listed at 9.65 USD. The rolling swivel with coastlock snap is used to connect the line leading from a rod to a lure to untwist the line to avoid tangling during retrieval.SpecificationColor: SilverMaterial: Copper&Stainless SteelSurface Treatment: Nickle PlatedStrength: 8kg / 17 lbsWire Diameter: 0.5mm / 0.02 inchOverall Length: 19mm / 0.74 inchRing Outer Diameter: 1.8mm / 0.07 inchPackage Content: 20 x Fishing Rolling Swivel with Coastlock SnapAdvantage1. This swivel connector is made of polished copper and stainless steel. Smooth surface will not cut fishing line.2. Rolling swivel can ensure 360-degree rotation flexibility under strong tension, thus reducing twist to a minimum.InstructionJust tie the fishing line connected to the fishing rod to the ring of the swivel.NOTE: Please confirm the size and strength of the snap swivel you need before ordering.