As water flows through the head it wobbles back and forth creating a loud rattle noise. It also creates nice bubble trails. Many people in South Florida have great success with cowbell style wahoo lures like this one. Inline trolling leads are not typically used with this style lure but instead, these are placed really far back. A 30 ounce Sincero works well at speeds up to about 20 knots and then a heavier lure is a better option. ABOUT MAGBAY LURES: MagBay Lures were born in Magdalena Bay, Mexico out of the desire to attract and catch more fish. Each design has been inspired and customized by anglers to meet the needs of what we have seen over the past 26 years fishing the Pacific and around the world. One of the many keys we have found is the perfect balance of mass and configuration that can give one lure enhanced creative action to ultimately intrigue more fish. MagBay Lures are consistently proven to catch all big game species. The quality and brilliance can be seen in any MagBay Lure you purchase.