Magazine Protectors for Collectors, Mylar Magazine Sleeves (8-7/8" x 11-1/2") - 2 Mil Thick (Pack of 50), BCW Clear Mylar Magazine Sleeve - It is made from Archival Polyester (Mylar), a material of highest clarity, which beautifully displays and protects the magazine. High Resistance - Mylar contains no dangerous plasticizers, slip additives, surface coatings, antioxidants,acid-hydrolysis making it resistant to moisture, insect attack, fungus, mold, mildew, acid, oils, grease, and solvents. Strength - Proudly Made in the USA, acid-free archival bags give protection for 100s of years and is 10 times stronger than a polyethylene. Dimensions - plastic magazine storage bags measure 8-7/8" x 11-1/2", 1" flap for closure and 2 Mil thickness. These clear sleeves fits standard magazines. Includes: 50 mylar magazine bags per pack.