I have a Roadmaster Falcon All Terrain tow bar. It is a nice unit and straightforward to use.
I don't see safety cables or a power cable for tail/brake lights in the photo.
Make sure you get both.
This may or may not help, but this was my final "shopping list" for setting up my LJ to be flat towed:
Sourced from e-trailer.com:
Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 10 1/4" Rise/Drop
11-1/4" Long – 10,000# GTW 400# TW P/N RM-048-10
Roadmaster Falcon All Terrain, Non-Binding Tow Bar
Motorhome Mount - 2" Hitch - 12" shank - 6,000 lbs. P/N RM-522
Adapter for Jeep D-Ring Bumper Mounts to Roadmaster Motor Home Mount Tow Bars
3/4" Thick P/N RM-035
7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars
8' Long P/N RM-1676-7
CE Smith Tie-Down Bracket for Boat Trailers
Galvanized Steel - Bolt On, 2 ea., P/N CE26214G
[Used for safety chain attachment points on jeep]
Roadmaster Tow Bar Cover P/N RM-055-3
[Unnecessary, but it allows me to keep the tow bar on the motorhome out of the weather
Sourced on Amazon.com:
Roadmaster 76" Single Hook, Straight Safety Cables
8,000 lbs P/N RM-645-76 [Also available from etrailer.com.]
Sourced on E-Bay:
Previously owned RVi3 Supplemental Brake System with Command Center and 6-tire Tire Patrol.
Sourced locally:
Magnetic Trailer Lights [already on hand in my trailer tow kit]
Hitch pins and clips
Miscellaneous hardware
