A T-47 airspeeder is shown with its magnetic harpoon, which is mounted at the rear.
Tow cables, also referenced as harpoon cords or magnetic harpoons, were implements utilized by snowspeeders of the Rebel Alliance to move cargo. During the Battle of Hoth, these devices were employed to ensnare the legs of Imperial AT-ATs, causing them to fall.
The initial appearance of magnetic harpoons occurred in the film Star Wars: Episode V The Empire Strikes Back where they were known as tow cables.