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The Petzl Mini Prusik pulley features side plates that are designed to prevent a prusik friction knot from jamming the sheave while hauling.
With a super-light, compact design, the Petzl Mini Prusik Minded Pulley handles big loads but is still small enough to carry on your harness. The swinging aluminum sideplates and efficient sheave make it durable enough for big-wall use and light enough for just-in-case situations.
Petzl Big Wall & Protection Mini Prusik Minding Pulley-Black P59AN.
This easy rolling pulley is light enough to carry with most places to make it useful in many scenarios. This pulley is designed to work in conjunction with a prusik friction knot for better rope control. a Special side plates designed for use with a Prusik friction hitch in progress capture systems a Sheave mounted on sealed ball bearings for excellent efficiency a Compact and lightweight a For use on ropes between 7 and 11 mm in diameter a Sheave: 25 mm a Efficiency: 91 %