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Features of the Camp USA Sphinx Pro Fixed Pulley Fixed side plates Sealed ball bearings for High efficiency (92%) Super-compact Aluminum alloy body and sheave Stainless steel axle Prusik-minding For ropes up to 13 mm
C.A.M.P. Big Wall & Protection Sphinx Pro Small Fixed Pulley 2153. A.M.P.'s Sphinx Pro is a super-compact lightweight and easy-handling pulley with fixed side plates. The Sphinx Pro uses the same design as the Sphinx but features sealed ball bearings for higher efficiency. The Sphinx Pro is designed for intensive use at higher speeds but is small and light enough to easily carry on your harness or throw in your pack for ski touring and mountaineering. Unlike other pulleys with fixed side plates the Sphinx Pro allows a prusik knot to be installed on one side (aramid cord suggested) making it an ideal pulley for rigging a haul system on route or managing crevasse rescues.