Jigging World Maguro Jigs are designed to be worked as speed jigs aka high pitch jigs. These jigs are perfect for all species of Tuna, Amberjack, Grouper & more. Finishes on these jigs are superb looking. Hardware includes Jigging World's newly designed Jigging Swivel which consists of Stainless Steel Ball Bearing Swivel, Solid Ring & Split ring so that your assist hook, jig, and leader line are always separate from each other. This will increase your landing ratio significantly. Hooks are high quality BKK jigging hooks.