These are an acid free, archival quality product made of crystal clear polypropylene or Mylar bags.
BCW Comic Book 1 Pack, Sized for Current and Silver Age Books
Crystal CLEAR COMIC BACKER BOARDS, Diamond Defense CURRENT AND SILVER AGE
2-Pack Black Comic Book Stor-Folio - Storage Box for Current and Silver Age Comi
10 50 100 + PREMADE BCW CURRENT SILVER GOLD TREASURY Comic Book Bags and Boards
10 100 1000 BCW Current Silver Golden Age Thick Comic Book Bags or Boards
