High efficiency, lightweight Prusik pulley Compact pulley offering a lightweight solution for setting up progress capture systems. Special side plates designed for use with a Prusik friction hitch in progress capture systems Sheave mounted on sealed ball bearings for excellent efficiency Compact and lightweight Rope compatibility: 7 to 11 mm Sheave diameter: 25 mm Ball bearings: yes Efficiency: 91 % Maximum working load: 2,5 kN x 2 = 5 kN Weight: 80 g Certification(s): CE EN 12278, NFPA 1983 Technical Use