Jamba droids were the main 'heavy units' of the Droid Confederacy military. They were designed by Unit 933, who named them after his creator, Jamba Lo. They looked similar to 933, except without the jetpack. Their left hands were dexterous, and capable of holding and using many weapons. They had no right hand, just a flap which could be opened to shoot explosives. CIS Assault Rockets were a weapon frequently used by Jambas.