Petzl MAESTRO S Integrated Progress Capture Pulley Descender D024AA00MAESTRO S is a descender designed for technical rescue operations. It facilitates manipulation of heavy loads, for lowering or hauling, and may be used in both the primary system or in a back up belay. This versatility allows rescuers to adapt to any situation they may encounter on the rescue scene. The ergonomic handle and integrated brake allow for comfortably controlled descent. Shifting from lowering position to hauling position is immediate,