The liquid-cable launcher, alternatively known as a grappling spike launcher, was a tool that launched cables, enabling the user to tow themselves or droids. BB-series astromech droids were equipped with these liquid cable launchers, employing them to navigate challenging landscapes. A liquid cable launcher was also in the possession of Quinlan Vos, who utilized it within a Black Sun Fortress. On one occasion, BB-8 deployed his liquid cable launcher to facilitate his and F3-ZK's getaway from a Teedo. Subsequently, he redeployed it to restrain Canto Bight police officers at their headquarters on Cantonica. This occurred after he had diverted their attention using coins and incapacitated them with an electrical shock, all in an effort to liberate Finn, Rose Tico, and "DJ" from the prison.
Quinlan Vos noticed Asajj Ventress pursuing the Volpai Moregi, and he utilized his cable launcher to reach her.