Petzl Micro Pulley 1/2″ Capacity & Fixed Cheek Plates Orange A popular Fixed cheek plate from the well know manufacture, Petzl. Features and specifications: Aluminum Cheek Plates and Sheave. Fixed cheek plates that do not drop down Capacity: 1/2″ Diameter Rope Tensile Strength: 4945 lbs. Sheave Diameter: 1.25″ Pulley Height: 3.00″ Manufacture: Petzl