I'll admit it, I'm a sucker for anything that might help me survive in even the most far-fetched zombie/car-over-bridge/badger-attack/stubborn-bottle-cap scenarios. I'm an even bigger fan of a bargain, so this little 11-function pocket-tool for little more than a dollar screams "Buy me!" And I respond as expected... a couple times.
I'm guessing these come from overseas, so buy it and forget about it for a few weeks until it happily arrives at your door.