Mini Knife Keychain

From the website:

A useful and stylish tool that will come in handy for a variety of tasks.

Its small size and convenient design make it easy to carry with you at all times.

Features and Details:

• Stainless steel/brass/iron/emulsion

• 1.6"W x 3.2"L

• O-ring

The big question is, can you take it through airport security? 

No idea.

I'm thinking sometimes it'll be confiscated, other times not noticed.

You pays your money and you takes your chances.

If, like me, the rest of your life is a No-Fly Zone, you're all set.

One more thing: if you look closely at the photos you'll note that a tiny Phillips-head screw secures the blade to a metal shaft integrated into the device,

allowing you to remove the business end. 

$8.