Wire saw, hooks, fishing string, matches, sewing needles.

I got this for 5 bucks from an eBay distributor when shopping for Storm matches (great seller BTW, can provide a link if anyone's interested) and from the contents, wasn't impressed. However, what I didn't realize was just how tiny the container was. Here it is with a pen for scale:



It seems like a reasonably comprehensive EDC add-on. Because it's so small and relatively lightweight, I'm actually considering putting one into my BoB as well. Does anybody have experience with these?