Wacky HeadThe Gamakatsu Wacky Head features an additional rubber skirt that provides underwater vibrations for even the most subtle movements. Wacky Heads are commonly paired with a rubber worm to create a fluttering action when fished. In many cases, however, the rubber trims on the hook shank are already sufficient to provoke predatory fish to bite. Where to Buy? Rubber Skirts The flexible rubber skirts create very fine vibrations and a luring action