Luhr Jensen 20ft Jet Driver - Black Moon Jelly. The preeminent diver for river back-trolling applications the Jet Diver enables the presentation of lures and baits tight to the river bottom where most fish are found without getting hung-up in this difficult environment. Trolling anglers incorporate Jet Divers as controlled-dive tools that are highly capable of bumping over bottom structure and floating free should they become stuck. Specifications for Luhr Jensen 20ft Jet Driver Lure: Manufacturer: Luhr Jensen Length: 20 ft Package Contents: Luhr Jensen 20ft Jet Driver Lure Luhr Jensen 5540-020-2500: 20ft Jet Driver - Black Moon Jelly