COMIC CURRENT MYLAR 4M 7.25x10.5 Current Comic Mylar - 4 Mil Made of Archival Polyester (Mylar) Fits Standard Current Comic Books 4 mil Material Thickness Crystal Clear Protects For 100's Of Years Strength Is 10 Times That Of Polyethylene Use With BCW Current Extenders Exterior Dimensions: 7 1/4 x 10 1/2 1 1/2 Inch Flap For Closure 25 Bags Per Pack These 4 mil Comic Book Bags Are Made Of Archival Polyester (Mylar) An Inert Material Of The Highest Clarity. Mylar Will Not Discolor, Damage, Or Adhere To Items Placed Inside It. It Is A Sturdy Film That Beautifully Displays, Timelessly Protects & Gives Extra Support To Fragile Documents. Resistance To Moisture, Insect Attack, Fungus, Mold, Mildew, Acid, Oils, Grease, & Solvents. Mylar Contains No Dangerous Plasticizers, Slip Additives, Surface Coatings, Antioxidants, Acid-hydrolysis. This Bag Is A Semi-Rigid Bag & Does Not Require The Use Of A Backer Board. But If You Do Use A Backer Board Be Sure To Only Use Certified Acid Free Boards. ADDITIONAL INFORMATION: o Full Image [JPG]