PETZL Vertigo Wire-Lock Carabiner INTENDED USE: The VERTIGO carabiner is designed for use on via ferrata lanyards. SIZE AND STRENGTH: This large opening (24 mm gate) makes it easy to connect it to cables. Its major axis strength is 25 kN. EASY TO USE: The ergonomic shape is easy to handle and facilitates quick changes when passing intermediate anchors. LOCKING SYSTEM: The Wire-Lock system optimizes the number of opening and closing cycles of the gate and limits maintenance. NO MORE SNAGGING: Petzl's Keylock system helps avoid accidentally snagging your carabiner on your gear.