This flipline adjuster is designed for 1/2 rope, and travels and operates in either direction, effectively turning a double-snap flipline into a two-in-one flipline. The Klimair is compact and lightweight. Climbing with a two-in-one flipline is safer and allows the climber to bypass branches without being unsecured. Note: the warning printed on the Klimair that it is not to be sued on metal rope means it is not to be used directly on steel cable. It is fine for use on steel-core fliplines.