High-strength double pulley designed for rescue professionals to set up progress capture systems of high mechanical advantage Special side plates designed for use with a Prusik friction hitch in lightweight progress capture systems Parallel mounted sheaves and auxiliary attachment point for creating different types of hauling systems, including the most complex Large diameter sheaves mounted on sealed ball bearings for excellent efficiency Accepts up to three carabiners to facilitate rope maneuvers Sheave diameter: 51mm Rope diameter: 7-13mm Efficiency: 97% Working load: 12kN (3kN on one rope end) Breaking strength: 36kN Certification: - CE EN 12278 - NFPA 1983 General Use Weight: 450g Made in France Materials: - aluminum side plates - aluminum sheave mounted on sealed ball-bearings