The Petzl Oscillante weighs next to nothing and is often carried for use in a crevasse rescue system or the occasional unexpected haul. . . Quick and easy installation due to swing side plates. Nylon sheave and aluminum side plate for excellent strength to weight ratio. 15 kN breaking strength; maximum working load of 4 kN. Weighs 1.48 oz.. CE certified. 3342540087330 20101600012 P02A