Perfect for building pulley systems and for big wall climbing - the Auxiliary Pulley by Fixe! The Rope pulley has a working load limit of 4 kN and is particularly sturdy thanks to the fixed sides. Even if the pulley will break out, the rope still is in the device thanks to its fixed Stem. The Auxiliary Pulley thus qualifies as a load pulley. However, it must not be used as a Rope pulley in a rope bridge.