High strength, high efficiency pulley  For rescue professionals  Designed to maneuver heavy loads or for intensive use  Large diameter sheave mounted on sealed ball bearings for excellent efficiency  Accepts up to three carabiners to facilitate use Weight: 185 g Min. rope diameter: 7 mm Max. rope diameter: 13 mm Sheave type: sealed ball bearings Sheave diameter: 38 mm Efficiency: 95 % Working load: 4 kN x 2 = 8 kN Made in: FR Certification(s): CE EN 12278 NFPA 1983 General Use