A perfect knife for traveling on planes, the credit card sized folding knife easily slips in and out of your wallet with ease. When confronted by a thief or rapist, just get out your wallet, excuse yourself for a few minutes while you fold/clip it together, and Whammo! you are ready to do some defending. The knife is 2.2mm thick, weighs 13 grams, and has a razor sharp 65mm long blade.