The Covenant rope is a type of tether used by Covenant soldiers to rapidly descend from high places, similar to rappelling rope. They are described as "slithering, plasticine ropes which glow ghostly blue." In 2552, during the Fall of Reach, teams of Sangheili used them to rappel down on the floor of the central room of the Menachite Forerunner Complex below the surface of Reach, to recover the Forerunner Crystal from Dr. Halsey and the SPARTAN-II's.