Hi folks, I wonder if some of you come across big coin capsules that would fit bigger Chinese medals, e.g. 80mm, 120mm, etc. I found some sites with 120mm coin capsules, but thickness is a problem, as most are less than 10mm thick. What other alternatives remains besides leaving them in plastic pouches or zip bags? I'm sceptical about materials being used for mint plastic pouches. It might be just a "normal" plastic that might influence bad on medal over years. Is maybe somebody aware of the company that is only slabbing medals but not grading them? Thank you!