@@lonlicmark The quality and markings of the bills. Now the same kind of pack in this video has larger "COPY" markings and it's more noticeable that it's fake.
I bought a pack of these a while back, it's a shame they stopped selling on Amazon. The 1's, 2's, 5's and 10's & 50's were good, but the tens were the best overall. Through a combination of overnight soaking and drying I was able to mimic the texture of real bills. Caused a slight disruption in the weed economy at my school on two separate occasions, dodged a few bullets here n there but I managed to get a handful of weed pens😂 Though if you ever end up buying packs of prop money on Amazon you should avoid the packs of 20's, the coloring looks good on the seller page but its shitty coloring in reality. I recommend trying to find an unboxing video of them if there aren't any reviews with image/video.