24PT THICKNESS.
100 x SILVER AGE COMIC ( BAGS AND BACKING BOARDS ) SAFE GRADES STORAGE
100 x SILVER AGE ( BAGS AND BACKING ) BOARDS SAFE GRADES
100 X Silver Age Comic Bags & Boards: Archival Safe Storage!
100 x SILVER AGE COMIC BACKING BOARDS SAFE GRADES
100 x SILVER AGE COMIC ( BAGS ) SAFE GRADES NEW AMERICAN COMIC BAGS
Pack of 100 X SILVER AGE SIZE U.S. COMIC BACKING BOARDS - SIZE C
