300Pcs X Silver Brass Barrel Fishing Swivel Ball Bearing Tackle SwivelsThese swivels are great for their purpose; that is, to prevent the tangling and twisting of your fishing line. These barrel swivels are a very affordable solution to prevent the line twist that is dreaded by all fishermen during casting and retreivel. Features: Each swivel is designed with a barrel (closed body) and 2 line attachment rings: one to attach the line originating from the rod and reel, and the other to attach your main rig or working line.