High quality 2 mil (0.002") archival-safe polypropylene. Made by Ultra Pro.
100 New BCW * Silver Age Comic Boards & Ultra Pro Comic Bags Acid-Free
Ultra Pro Comic Bags (100-Piece)
(3 Count Lot) Ultra Pro Comic Book Preservers Current / Modern Size Bags Boards
(5 Count Lot) Ultra Pro Comic Book Preservers Current / Modern Size Bags Boards
10 BCW Magazine 8.5 x 11 Backing Boards & Ultra Pro Resealable Bags Storage
Ultra Pro Comic Book 10 Sheets, Silver Age. Valiant Promo Comic. NIP Box 295
