FlashingBoards Outdoor Multi-Purpose Carabiner with Pocket Knife Carabiner multi-purpose tool includes a knife, and can be used as a keychain Ideal size, shape, and weight for easy carrying and daily use (4.25"L X 2.5"W) Quick release allows for effortless fastening/unfastening and has a locking mechanism Easily and conveniently attaches to backpacks, key rings, belt straps, etc This carabiner is the perfect accessory as it merges utility and convenience making it a must-have for camping, hiking, hunting, rock climbing, and other outdoors activities