The freshwater guys in particular have been having an outstanding level of success over the past 12 months or so fishing additional metal attractors on their soft lures. This is a special variety and one that is more compact than many. With larger detachable blades for example, they're not usable with many lures under 4" long. These Wheel Heads however are superbly designed (with tungsten) to sit perfectly on 2" and 3" lures.
The spinning blade sends out 3 kinds of attraction. Visual flashes, pressure/vibration waves and noise that will drive fish crazy!
Hook size on these is consistent between all weights and is around your average size 4 or maybe 2 hook.