PETZL RESCUCENDER**Special Order Item: 2 4wk lead time** Openable cam loaded rope clamp Simple to use and ergonomic, the RESCUCENDER is an openable cam loaded rope clamp designed for use in haul systems as a tractor or progress capture device. Description Designed for use in haul systems as a tractor or progress capture device Simple to use, and ergonomic: openable cam allows installation or removal of the rope clamp at any point on the rope independent safety catches