BCW® Comic Book Extenders will help prevent yellowing, retards the aging process, and absorbs and neutralizes the contaminants in comic book pages. These 10 mil sheets go inside the book, next to the paper and ink ¼ one fourth of the way in from the front and back covers, only two sheets per book are necessary!

Combined with our 2 or 4 mil BCW ® Comic Mylar® Bags and our BCW ® Certified Acid Free Backing Boards for stiffness and proven acid-neutralizing quality, you can't do any better to preserve your valuable collection. BCW Comic Book Extenders will extend the life of your comic and are an inexpensive alternative without sacrificing quality protection.