This multi-purpose (stainless steel) card tool fits in your wallet with credit cards and measures at 3 3/8″ x 2 1/8″. It can be used for avoiding contact with certain door handles, as a signing stylus and button pusher, repairs, mechanics, outdoor needs, camping, boating and more. There are 17 functions of this tool. Can imprint on the complementary sleeve for an additional fee. Sleeve only available in black. This item is TSA compliant for air travel. But a final decision will be left up to the TSA officer.