The CAT Tourniquet utilizes a durable windlass system with a patented free-moving internal band providing true circumferential pressure to the extremity. Once adequately tightened, bleeding will cease and the windlass is locked into place. A hook and loop windlass retention strap is then applied, securing the windlass to maintain pressure during casualty evacuation. The tourniquets unique dual securing system avoids the use of screws and clips which can become difficult to operate under survival stress or where fine motor skills are compromised. Buyer Recieves (2) CAT Tourniquet Gen 7 Black, factory sealed and freshly dated.