A highly efficient, lightweight pulley which is designed for maximum simplicity when setting up hauling or load deviation systems. The special side plates enable the use of a Prusik friction hitch by preventing the hitch from entering the pulley mechanism, increasing safety and convenience. Sheave mounted on sealed ball bearings for excellent efficiency Extremely lightweight and ultra-compact Material(s): aluminium side plates, aluminium sheave Weight: 135g Minimum rope diameter: 7mm Maximum rope diameter: 11mm Efficiency: 91% Sheave diameter: 25mm Working load: 6kN (1.5kN on one strand) Breaking strength: 23kN