Due to its small size and discreet carry ability, this jack knife style lock-pick set might be the set that you always have handy in an unexpected time of need. The jack knife has five blades: 4 picks, and one broken key extractor. The tension wrench is concealed in the machined aluminum handle. Key ring included. Length: 3.5". Thickness: .25". NOTE: This is a restricted sale item; you must agree to the Terms of Agreement for Ordering Locksmithing Equipment before ordering.