11-Function Stainless Steel Pocket Tool (3-Pack)

Not incredibly useful, but it is well priced and worth buying for those 'just in case' moments.I'd like to first mention that this is advertised as having 11 functions, though only about 6 of them are actually practical.Actually Useful Functions:1) Can Opener- Obviously useful2) Knife Edge- After being sharpened is quite functional3) Screwdriver- A bit wide, but works fine4) Ruler- Somewhat useful. It measures in centimeters and is only 4cm long (just over 1.5 inches). Would have prefered some of the useless tools gone and this slightly longer (or smaller tool size, to justify the small ruler length)5) Saw Blade- Not certain how much could be accomplished with a saw this small, but I still deem this a useful function6) Direction Ancillary Indicator- A quick google search provides the info that this is used to indicate direction on a flat surface when used with a water droplet and an extremley light magnetized bit of metal. Was not able to yeild a result myself, but I'll assume I was doing something wrong.Useless "Functions":7) 4 Position Wrench - Potentially useful, HOWEVER any place I have seen nuts/bolts this small they have been in constrained spaces, meaning that the square shape of the tool would be too bulky to actually maneuver a turn.8) 2 Position Wrench- Smaller version of above (why is it considered a separate tool?). Identical problems9) Butterfly Wrench - Honestly not quite sure what this is, though other reviewers have mentioned that the whole point of a butterly nut/bolt is that you don't need a tool for it. (Could also see space being an issue as for the 4 Position Wrench)10) Cap opener- Perhaps I'm unenlightened, but what can a cap opener do that a can opener can't?11) Keychain/lanyard hole- Not a USEFUL function. The whole point of this is to have it for an emergency or unexpected situation while being unobtrusive. Fitting this on a keychain bulks it up, not to mention adding the danger of cutting yourself (see SAWBLADE and KNIFE EDGE). A lanyard is also inconvenient with the same potential self-mutilation. Luckily it fits in a credit card sized wallet compartment where it should be stored(it's actually a bit smaller than a credit card).On the plus side, it seems much more durable than I thought it would be and comes with a nice protective sleeve to conceal the sharp parts.At the time I bought this, it was a total of $2.00 with free shipping. This is 8 quarters people; if you're even mildly interested, it's worth it!