Features: 
Great for various rigs and leader
Barrel swivel made of solid copper, allows for smooth flexible rotation, not easy to wind around the fishing line and keeps twisting to a minimum
Use in freshwater or saltwater for species like bass, catfish, walleye, tarpon, redfish, snapper, sea trout, snook and cobia
Perfect for attaching your weight above your leader
Great for fishing any species which requires your bait to be on the bottom