The weight that is most easy to use for root fish & blue fish aiming in surf casting and boat sea bass. It has made it possible to aim for breaks off the coast, and to use it in deeper water areas.The long-awaited models are now available in the "Checkered Series" jigs that are active in boat sea bass, blue fish from the shore, flatfish on the surf, and all-round! Deeper! Farther! Further expand the field of activity.