It sounds like you're referring to the arms that come out of the base plates and yes, the Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521453-5 comes with those arms; it actually comes with everything you would need for a complete base plate kit that will allow you to connect directly to Roadmaster tow bars that are compatible with direct connect base plates.
A complete flat towing kit consists of base plates, a tow bar, tow bar wiring, supplemental braking system and... view full answer...
You will need the Custom Mounting Brackets # RM34RR for your 2020 Jeep Gladiator along with the Roadmaster Exact Center Steering Stabilizer # RM72ZR. view full answer...
The Replacement Hardware for Roadmaster EZ4 Base Plate Kit # RM-521440-4HK includes the mounting hardware for the Roadmaster Crossbar-Style Base Plate Kit # RM-521440-4. I have included a picture of what this includes for you to check out. view full answer...