The Sworming Hornet Fish Head Slider is can be used as an insert head for your favorite hollow belly type swimbait.  Unlike other insert heads on the market, the Sworming Hornet Fish Head Slider has a twist, it allows you to add a treble hook on the bottom side of the head for that little extra help on that hook up ratio.  If cover doesn't allow you to add a treble hook, do not worry the main hook is plenty big enough.