This is knife that goes in your wallet, of course, you are going to need a bit more room in your wallet than normal otherwise you will not be able to get anything else in there with it! So with the right sized wallet, this knife will fit into one of the credit card slots, it’s a handy tool to carry around when out hiking and camping. It is probably not a good idea to take this to work with you.
These are the details of the specs available from the credit card knife;
If you’re looking for security and utility on an everyday basis you need to carry a blade. Carrying a knife at all times can seem a little ominous at first, but you never know when you’re going to have to defend yourself from a perp – or an errant thread on your jacket. At 2 3/4″ closed, this titanium folding knife is small and unassuming enough to slide under the radar until it needs to be used.
This is a great item and it is going to cost you around $30 (£20).
Source: Cool Material