It's a really neat idea but the tools are badly placed and hard to use.
- The Knife could have done with being a bit sharper
- Can opener: it managed to make an initial hole but it was very difficult to cut any further, maybe its because mine had a rounder corner instead of sharp one, or I just have weak hands.
- Would have made more sense to have the ruler starting from the flat edge, instead of from the middle.
- Screwdriver can only be used with screws that are flush and not in hole.
- Spanner is of limited use to me, as when I wanted to tighten a nut on my bike the rest of the card just got in the way of the turning. It would have been more useful if the spanner was in the corner so it could be turned more easily .
+ Bottle opener is the only tool that can be used with relative ease.
+ The saw is usable as a novelty, but could potentially cut small bits of plastic or wood.
I have to add that when using any of the tools you have to be very careful not to cut yourself.
In hindsight should have saved up for a cheap swiss army knife imitation.