Petzl P51 Pro Traxion Self-jamming Pulley. Suitable for hauling systems and as a progress capture device for travel along a Tyrolean traverse. The 38mm Sheave is mounted on sealed ball bearings, this pulley has an integral mechanical rope grab. The device can be installed directly onto mid point on the rope via the hinged side plate. For use with EN1891 or EN892 textile ropes up to 13mm diameter. Weight 265g. EN567 & EN12278. When used as a pulley only Work load 3kN x 2 = 6kN & a break str