CMC ProTech PulleysFEATURES Ideal for mountain rescue, swiftwater, ski patrol, tower work or other technical uses, where equipment weight is a significant consideration, these lightweight, full strength Prusik minding pulleys feature extremely low profile stainless steel hardware to reduce snagging on rocks, roots, and uneven surfaces. By machining the side plates, the thickness of the metal can be optimized to maximize the strength to weight ratio, a process that