Most Leatherman folding knives include a carabiner, which makes it easy to attach the tool to a belt loop, climbing rope, or just about anything else. The tool also doubles as a bottle opener.
To attach the carabiner to a belt or rope loop, just push it against the moveable clip until it slides inside the carabiner body. To release the tool, push on the moveable clip and slide the tool free. Most Leatherman multi-tools have the carabiner integral to the body. On the Leatherman folding knives, the carabiner folds out or slides out, depending in the model.
Some Leatherman multi-tools have a similar carabiner with bottle opener