When you want to change lures quickly and easily the Berkley Cross-Lok Snaps are the secure way to attach your lures. These plain black snaps are rated for specific line classes and won't let go even under pressure. If you're using only one or two rods and want to change lures quickly, these snaps are for you. If you're the backseater in the boat and can't bring too many rods on board, the Berkley Cross-Lok Snaps will almost be like doubling your rods with the ease and speed you can change lures. These snaps will also allow your lures to swing easier, giving a more natural look.