The GT Lures H-BLB7 Blackfin Bullet Lure Head is an offshore tournament proven bullet style design that is capable of taking down all tuna and pelagic species that are keyed in on a small bait presentation. While most bullet style trolling lures tend to have little to no action, the GT Lures Blackfin Bullet is designed to be very active with an enticing wiggle that big game fish like blackfin tuna, yellowfin tuna, bluefin tuna, dolphin, wahoo, and more cannot resist.