I disagree with the previous comment,this coins are absolutely crap my main jumbo gimmick has a dent in it,the design is printed on the copper discs,and its printed on skew,this design will scratch on both Small coins and Jumbo,for the $ you pay absolutely garbage.
I also own the Chinese economy set which I had the same issues,In the end I had to reprint the design on stickers and stick it to the discs and coat with lacquer,hoping that the coin design would last longer
I guess I have to do the same with this set.
Make no mistake this is both great effects,but manufacturing quality terrible
In a nutshell,Mr Evans your coin products manufacturing quality is SHIT!!!