Strike Zone Shake Up Heads are designed to stand your bait up on the bottom for a tasty presentation that bass can`t resist. Its durable spring keeper will keep your lures secure so you can fish worry-free. The Strike Zone Shake Up Head comes in two styles. The SH series features a heavy Gamakatsu hook for larger baits, while the SL model is equipped with a light-wire Mustad hook for finesse fishing applications. Both styles are available in a number of proven colors, so you can match the hatch.