BCW Resealable Silver Comic Bags - Thick (100 Count) Resealable strip on back of bag made of crystal clear polypropylene Holds silver age comics; Acid-free, safe storage Exterior Dimensions: 7 1/4 x 10 1/2 Inch; 100 bags per pack Wider bag fits annuals and 80 page giants; Use with BCW Silver Backing Boards These bags have a reusable adhesive tape strip on the body of the bag so the collector can fold the top flap over and lock in the comic