How do comic book bags and boards differ in terms of material and protection level, and what should you consider when choosing between polybags, Mylar bags, and different board thicknesses?

How do comic book bags and boards differ in terms of material and protection level, and what should you consider when choosing between polybags, Mylar bags, and different board thicknesses?
Admin 1 day, 7 hours ago in Comic Book Supplies & Accs
0 Answer(s)