Petzl Mini Traxion Progress-Capture Pulley One Size. The large-diameter sheave mounted on sealed ball bearings provides excellent efficiency (93 percent). The cam can be locked in the open position so the device can be used as a simple pulley. Specifications for Petzl Mini Traxion Progress-Capture Pulley: Manufacturer: Petzl Size: One Size Fabric/Material: Aluminum/Steel/Nylon Weight: 150 g Breaking Strength: 20 kN Features of Petzl Mini Traxion Progress-Capture Pulley High-efficiency progress-capture pulley designed for hauling and rescue:- Large diameter aluminum sheave mounted on sealed ball bearings for excellent efficiency (93 percent) even when hauling heavy loads- Toothed cam with self-cleaning slot optimizes performance under a variety of conditions such as when the ropes are frozen or dirty - For use on 7 to 11 mm diameter ropes Simple to use:- Openable side plate allows the rope to be easily installed while the pulley is connected to the anchor limiting the risk of dropping it- Triple-action opening of the moving side plate is quick and easy even with gloves- May be used as a simple pulley by locking the cam in the raised position- Compact and lightweight (150 g) Durable:- Special side plate design protects the rope path- Stainless steel toothed cam for optimal durability Package Contents: Petzl Mini Traxion Progress-Capture Pulley Petzl P054AA00: Mini Traxion Progress-Capture Pulley One Size