Although these look like a piece of crap, they really are quality, as well as being a neat bit of kit! I bought one just to play with and use in my classes, (along with 2 or 3 others) and found it is as accurate as any of the others. My only complaint was that since it is not liquid filled, nor does it have a dampened needle, it tends to "jiggle" alot. But what can you expect from a micro-mini button compass!! You need to set it on a steady surface (non-ferrous of course!) to read it with any relative accuracy. Although this would never be my primay compass, it has been put into service as my survival compass in my mission vest.
Molon Labe