You know, people always said – “money” is a powerful weapon, even if you hold them with you in a small secured credit card. In the same way think and from the company Iain Sinclair which comes up with handy offer for emergency situations – CardSharp.
CardSharp a superlight (jus 13 grams) and supersharp utility knife in the same size as a credit card. It has foldable design and is super thin – 2.2 mm thick and can folds into a card to fit in your wallet. The knife’s 3-inch blade is made from high quality rust free stainless steel and you can choose its color from Teflon Black or Natural Brushed Stainless Steel.
It has a built-in protective sheath which keeps the blade edge well protected and it cannot be accidentally opened, so don’t worry that it could slash your pants or something else between your pockets 
The CardSharp can be pre-ordered now for only $23 and will start shipping in January.
Source: DVICE