PETZL - ROLLCLIP A, Pulley-Carabiner EASIER HANDLING: Sheave mounted on sealed ball bearings for excellent efficiency. MULTIUSE: Gate opening on the pulley side facilitates installation of the rope when the pulley is fixed to the anchor. VERSATILE: May be used with a CAPTIV positioning bar to favor loading of the carabiner along the major axis and to limit the risk of it flipping. LOCK IT UP: Keylock system prevents any accidental snagging of the carabiner when putting the pulley in place. FULLY EQUIPPED: The H profile of carabiner ensures an improved strength-to-weight ratio and protects markings from abrasion.