The patented MAGic is an extremely light fall-arrest device on a moveable guidance made of steel and aluminium. The gliding along a core-sheathed rope absorbs the energy. As soon as the MAGic tilts, the brake blocks close around the rope and the MAGic holds the secured person within an extremely short reaction time and without any unsettling tearing noises. This appreciably reduces the initial shock from the fall and the worker feels safe.