Petzl Partner Pulley One Size. Specifications for Petzl Partner Pulley: Manufacturer: Petzl Color: Orange Weight: 2 oz Rope Capacity: 7 - 11 mm Working Load Weight: 2.5 kN x 2 - 5 kN Capacity: 2.5 kN x 2 5 kN Pulley Type: High Efficiency Features of Petzl Partner Pulley Ultra compact very lightweight pulley Designed for daily tasks and for on-site rescue (Tyrolean traverse...) Sheave mounted on sealed ball bearings for excellent efficiency Package Contents: Petzl Partner Pulley Petzl P52A: Partner Pulley One Size