Cargo tube
Cargo tubes functioned as a means for transporting goods. During 32 BBY, Arwen Cohl, a pirate affiliated with the Nebula Front, along with some hired soldiers, concealed themselves within half a dozen cargo tubes, each standing two meters high, to clandestinely board the planet Eriadu.
Behind the scenes
The novel Cloak of Deception, authored by James Luceno and released in 2001, featured cargo tubes.