The Bionic CrossLock carabiner from Mammut is light to operate with just one hand and offers maximum safety. It does this thanks to the innovative anti-crossload mechanism, which prevents dangerous cross-loading. It also has a locking mechanism that allows you to quickly attach the carabiner to a belay loop with one hand so that it remains in position while belaying. After belaying, the carabiners can be removed from the belay loop just as quickly.