PETZL Rescucender INTENDED USE: Designed for use in haul systems as a tractor or progress capture device. SIMPLE TO USE: Openable cam allows installation or removal of the rope clamp at any point on the rope. STAYS CLOSED: Independent safety catches on each side of the device allow easy opening while reducing the risk of accidental opening. These safety catches are equipped with an unlocked indicator. ROTATE: Large attachment hole to facilitate carabiner rotation. DURABLE: Integrated cam spring helps avoid accidental snagging and increases durability.