Light alloy single pulley with mobile plates and ball bearings for multiple use. For use with ropes up to 16mm and accommodate up to three carabiners on the upper eyelet. Suited for heavy hauling and complex operations. 4151311 Rope Diameter 5/8" | 16 mm MBS 6740 lbs | 30 kN Weight 0.59 lbs | 270 g Standards EN12278,UIAA