Built around the Petzl Maestro, the Mainline Kit provides a fast and safe lowering/raising system. Rescuers can use these components to build mechanical advantage systems including a 3:1, 3:1 with change of direction, or 5:1. These ready-to-go kits minimize gear sorting and allocation.

The Maestro 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 braking allow for comfortably controlled descent. Shifting from lowering position to hauling position is immediate, without the need to transfer the load. The integrated progress-capture pulley has a large diameter sheave mounted on sealed ball bearings, ensuring excellent hauling efficiency. The AUTO-LOCK system automatically locks the rope when the handle is not in use.

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