To be honest I use it to hold papers together on my desk but I suspect the bills will be thicker. Even when I put documents in this clamp (something I have nothing to compare with) it is very tight and I always feel like I have to be very slow and careful how I move the papers through the clamp. If the clip detaches over time (with use); Even with that, I have a feeling it's going to take a very long time (to relax). I mean, there's not much to complain about. That's what you expect. It's metal and it's a clip no matter how you use it. But I can't give it five stars because I wish it was a little less cramped. I also assume that tightening has nothing to do with the color of the clip you choose (who knows). This clip color that I received is gold/brass colored.
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