Jackson Plunge 70g 103mm Metals (Unrigged). High Quality, Asymmetrical Masterpiece! The Jackson Plunge Metal Jig (unrigged) sports an asymmetrical body shape that will improve bite rates for species such as Kingfish, Snapper and Tuna. Its streamlined profile will allow fast retrieves. Also, with its multifaceted shape design, it captures light more effectively in various directions.