In a post-9/11 world your travel security is ultimately your own responsibility. But with metal detectors and x-ray machines, most conventional self-defense weapons can not be easily carried while traveling. If you are a person concerned about your personal security and also aware of the need for a discreet solution, then look no further. Our pen knife actually writes and easily passes through metal detector security checkpoints by riding along with your keys and wallet in the basket that travels around the metal detectors. Also highly effective for defending against a mugger is the pens inconspicuous appearance.

Dimensions: 5.5 Inches overall