Check the listing for details. High Speed 2 Roller Swivel, 20Pcs 55lb Copper Barrel Bead Chain Rolling, Silver. Condition: New. Listed at 7.25 USD. The high speed 2 roller swivel is used to connect the line leading from a rod to a lure to untwist the line to avoid tangling during retrieval.SpecificationModel: 6#Color: SilverMaterial: CopperStrength: 25kg / 55lbSurface Treatment: Black OxideWire Diameter: 0.8mm / 0.03 inchBead Outer Diameter:2.9mm / 0.11 inchOverall Length: 16mm / 0.63 inch(LxW)Package Content: 20 x High Speed 2 Roller SwivelAdvantage1. The high speed 2 roller swivel with 2 barrel can ensure 360-degree rotation flexibility under strong tension, thus reducing twist to a minimum.2. This swivel connector is made of copper with oxidized treatment offers a anti-rust performance and high abrasion resistance.InstructionJust tie the fishing line connected to the fishing rod to the ring of the swivel.