Minimize the level of friction on a work rope and easily install redirects with the Petzl Roll Clip Z Pulley Carabiner Triact-Lock 2017 available at OmniProGear, where you can find the new gear you need before it is sold anywhere else. Keep the set-up process simple and use the carabiner with a Captiv positioning bar to load the carabiner along its major axis and to keep it from flipping. Efficiency is maximized by the sheave mounted on sealed ball bearings, and installing the rope when the pulley is fixed to the anchor is expedited by the gate opening on the pulley side of the carabiner. With the Keylock system, there's very little risk of the carabiner being snagged when you put the pulley in place. The Roll Clip Z Pulley Carabiner comes with a three-year manufacturer's warranty.