Small size with big performance, these are the same lightweight, minimalist design issued by the U.S. military for decades. Time-tested for toughness, dependability and making quick work offing the lid on a can of tuna. Made from nickel plated, hardened carbon steel, the blade folds flat for storage and will stay sharp for years. Sold in pairs. Attach to keychain, lanyard or tuck one in to any pocket or bag. 2”×.8”. Some background…this opener was invented in WW2 and is considered by some military historians to be one of the allies key technological advances, and one of the reasons the allies won the war. Arguably as important as the bomb, the Norton Bomb sight and a bunch of key other allied technologies. The 'official' name for this can opener is 'p-38' because it took 38 turns to cut open the lid of a standard can. Keep one in your cook kit and you'll always be able to open something to eat.