If you need a compass to round out your pencil case get this one. It makes me
feel like James Bond when i pull it out of my pen case. I have the scissors too,
alas, if only there was a stapler pen as well.
It's very cool, but the gear isn't sturdy enough to keep it from losing accuracy
if you're drawing multiple arcs. I can get 3 or 4, even with a light touch, and
then I lose a millimeter or so. For some jobs that's fine, but for others you
really need something with a screw to keep the same radius.