Chicago, Il--It's small but deadly. A well placed slash or two and an attacker can bleed out in less than a minute. Folded it's the size of your driver's license and has a profile that will evade frisks and even X-ray equipment if placed properly in a briefcase or purse.
This is for use in places where politicians have outlawed self defense like the UK and Gun Free Zones. It was made by Spyderco of Golden, Colorado. The bad news is that they discontinued making this model. Like my American Express card, I don't leave home without it!