Safety Technology Credit Card Knife has the edge on subtle personal safety!
The knife blade is discreetly hidden inside a black credit card with a blade-lock.
Pop the blade-lock and easily fold into a usable pocket knife!
Surgically sharp, quality steel neatly tucked away in your wallet or coat pocket, ready when you need it.

The blade is 2 3/4" long when extended. It measures 3 3/8" x 1/8" x 2 1/8" when in the credit card shape.