Hmmm, so I like the belts and everything, and I'm not sure who is at fault in this particular situation. What tends to happen is when trying to remove the belt, something gets snagged and the threads start to loosen. I have a bunch of loose threads that I just end up cutting off. I'm not super picky which is why it doesn't bug me that much but it's just a heads up to anyone who gets pissed at these kinds of things.