These snap swivels are made of nickel for maximum strength and durability. For a quick change of a lure and leader, these swivels have an attached safety snap. Black color for decreased visibility in water. When fishing rivers and streams, always fish with the current. This provides a natural presentation. Fish relate to cover. This includes weed edges, stumps, fallen trees, boat docks, and rocks. Find these structures and fish will be nearby. Always try to fish with the lightest pound test line the situation will allow as you will find that this will result in more strikes. When bottom fishing, use the lightest weight possible. This will prevent fish from feeling resistance. When you have a strike, or a fish is running, reel in slack line, then set the hook. This will provide a positive hook set resulting in more landed fish.