The Mustad Light Double J-Assist 4 Rig is designed for fast swimming fish or bottom feeders. The double hook rig features a heavy-duty solid double ring tied to the wide gap Mustad hook with high quality PE and Kevlar materials. The two assist hooks are connected to the top end of the slim jigging lure to improve hookset, as the fish often strikes at the top end. Another benefit is less snags because of the absence of the traditional tail treble. The assist hook has fish skin and flash tied in to attract attention, creating a striking point. These hooks were tested over a period of 2 years by Mustad's pro staff before they were launched.