Highly efficient swing-sided Prusik pulley. Designed for pulley systems and hauling of heavy loads. Suitable for use with a Prusik hitch as a progress capture device. Large diameter sheave mounted on sealed ball bearings for high efficiency. Attachment hole can accept up to 3 carabiners. Specs: Sheave Size: 2 inches Sideplate Size: 2.5 inches Breaking strength : 18 kN x 2 = 36 kN Working load : 4 kN x 2 = 8 kN For use with ropes of maximum diameter 13 mm Weight: 310 grams Individually tested Certification: CE EN 12 278