Petzl OK Triact-Lock Carabiner Spring 2009 The OK Triact-Lock Carabiner by Petzl is an automatic locking symmetric carabiner. The OK Triact-Lock is designed for use with pulleys and hauling systems. Easy to use, even with gloves. Unlocks quickly with two movements, for increased safety. Specifications: Weight: 75 g Major Strength: 24 kN Minor Strength: 10 kN Gate Open Strength: 7 kN Gate Opening: 19 mm Certification: CE Features: Symmetrical oval shape: - facilitates pulley use, - ideal for clipping anchors easy to flip over. Compact shape: easy to use with one hand. Key lock System snag-free body / gate interface. Available with manual locking system Screw-Lock or automatic locking system Triact-Lock.