The Williamson Lures Sailfish Catcher is a trolling lure targeted specifically to big, cruising sailfish. Its flat-headed design creates a provocative bubble trail, and the concavity behind the head is designed to hold a ballyhoo spring. Bringing the live bait closer in to the back of the head keeps you trolling longer. Targeted specifically to big, cruising sailfish Flat-headed design creates a provocative bubble trail Concavity behind head is designed to hold a ballyhoo spring