A person who always wants to be prepared has to consider buying this Credit Card Knife, a utility knife that unfolds into a flat, thin credit card shaped sheet, that easily fits into your wallet.
The 3”long knife is ultra light, but incredibly sharp as it is made out of surgical steel.
The material that the handle consists of has been designed with durability in mind, so it won’t tear in the areas it is supposed to be folded.
You don’t have to worry about it piercing the inner of your wallet, since the knife is reliably secured with a locking mechanism, so no accidental credit-card-attack.
When the occasion comes, unlock the knife, fold it and use it, it is as simple as that.