A tourniquet is a device used to stop serious bleeding in the event of an injury, such as a deep cut or gunshot wound. It can be made out of almost anything, including cloth, rope, rubber bands and even sticks. In a survival situation, having a tourniquet on hand could be critical for saving the injured person. When using a tourniquet, it’s important to remember that they should only be used as a last resort in extreme situations. When applied correctly, they can save lives, but when applied incorrectly, they can cause serious injury or worse.