Petzl Attache Carabiner is a lightweight, compact, pear-shaped screw-lock carabiner. Thanks to its compact shape and SCREW-LOCK locking system. The ATTACHE is designed for multiple uses related to belaying. Connecting a belay system to a harness, belaying with a Munter hitch. It has an H cross-section to reduce weight. As well as the Keylock system to avoid the carabiner snagging during manoeuvres.