This 18-in-1 multi-purpose credit card sized tool measures at 3 11/16" x 2 1/2". It can be used for: repairs, mechanics, measuring, outdoor needs, camping, boating and more. 2nd Imprint location goes on faux leather case, and requires an additional location charge. Comes in Black, Blue, and Red. This item is TSA compliant for air travel. But a final decision will be left up to the TSA officer. 3 11/16" L x 2 1/2" W