Petzl Mini Prusik Pulley One Size. Specifications for Petzl Mini Prusik Pulley: Manufacturer: Petzl Fabric/Material: Aluminum side plates aluminum sheave with ball bearings Weight: 2.8 oz Breaking Strength: 23 kN Working Load Weight: 5 kN 2.5 kN on one rope end Rope Capacity: 7 - 11 mm Pulley Type: Prusik Features of Petzl Mini Prusik Pulley Special side plates designed for use with a Prusik friction hitch in progress capture systems Sheave mounted on sealed ball bearings for excellent efficiency Compact and lightweight Package Contents: Petzl Mini Prusik Pulley Petzl P59A: Mini Prusik Pulley One Size