The Petzl ZigZag Mechanical Prusik Pulley is designed for arborists' easy, precise, and efficient movement around trees. Move around branches, return to the trunk, quickly go up or down, do pendulum swings between branches, or descend to the ground. The Petzl ZigZag Mechanical Prusik Pulley will help navigate smoothly around the trees.
This Mechanical Prusik Pulley System is mostly used with double ropes. The friction chain subsitutes as the prusik knot so it holds the holds the rope securely yet allows for smooth, fluid movement. The pulley is mounted on sealed ball bearings to easily adjust slack. The lower attachment hole is fixed for better grip, as well as to easily align the device to the axis of the worker. The Petzl ZigZag Mechanical Prusik Pulley is compatible to use with 11 to 13.5 mm diameter rope. It can hold up to 308 lbs. total worker weight. The ZigZag may be used with a single rope, but only when used along with the Chicane Auxiliary Brake.