Collection: Carabiners: Why HMS Carabiners?

You will need carabiners designed to securely attach the harness to a rope or anchor point. We recommend HMS carabiners: They are rounded and larger than climbing carabiners, with a locking gate. The lock provides extra protection against accidental gate openings. Any carabiner you use for human weight needs to be a locking carabiner. You can use non-locking carabiners for attaching gear to your harness or to zipline packs, but not for holding the weight of a person. HMS stands for the German word “Halbmastwurfsicherung” which means 'half clove hitch belay or 'Munter Hitch'Source