Transformer Credit Card Knife by 2nd Genesis - Razor Sharp Folding Survival Tool Fits in Wallet. Best Concealed Carry Self Defense Weapon for Emergencies. Safety Prevents Accidents, Be Prepared

Husband loves this tool. It's flimsy, but that is expected

DISCLAIMER: I received this product at a discount in exchange for my unbiased reviewThis is a nice cheap knife for using while camping or something similar. It is compact enough to easily fit in your wallet, but if your wallet is as full as mine, this knife is probably going to be warped after a month or so of being sat on. It folds easily into a knife but the handle feels a little short. I like that the way the card folds into the handle leaves a little stopper edge between your fingers and the blade. Speaking of which, this blade is pretty sharp right out of the box! I was able to easily cut the plastic bubble mailer it was shipped in with a minimum amount of pressure. Cardboard was also very easy to cut against the "grain" which can sometimes be a problem for scissors. This is why I think it'll be good for camping, it cuts easily through small ropes, twine, cardboard, etc... In card mode, there is a small spinner lock that keeps the blade from popping up. This should be pretty effective, but I was able to get it to slide into unlock mode once while just shaking the card, so I wouldn't depend solely on the lock to keep it in card mode. If it's in a wallet though, it should be compressed enough that this won't even be a problem. I am slightly concerned with the "hinges" that allow you to fold the handle. These are very thin pieces of plastic that could snap over time of repeated bending/folding. If you are using this repeatedly, I wouldn't expect it to last more than a few years.

This a neat little knife. It is just the size that is described, it fits in to a credit card slot of a wallet nicely. This makes for a nice discreet knife to keep in your wallet or back pocket, it isn't very noticeable at all when in your pocket, it just looks like a rectangular object. This is very lightweight, it isn't bulky or heavy at all. This is easy to transform from the credit card look to the knife look, you simply fold in the pieces and secure it by folding the necessary pieces over. When in its credit card shape the blade is of no hazard, it lays against the plastic and there are no sharp edges poking/sticking out. I would not reccomend this for heavy duty use, it is for lightweight work, maybe for cutting open a box or such. This is very convenient, it can be carried along easily, it is lightweight, and useful. I recieved this product at a discounted price in return for my honest review.