A transfer tube allowed movement between various levels on sizable starships. Unlike a turbolift that used cars, these tubes employed repulsorlifts to float passengers through the vessel. Passengers were elevated via lift tubes, while drop shafts served to descend them.
The Queen of Empire included transfer tubes in its design. Reck Desh compelled Han Solo to enter an inactive drop shaft. However, as Solo entered, he seized Droma's tail, using it to pull himself back to safety after Desh and the Peace Brigade had departed.