Archives Standard Comic Book 4-Mil Thick Mylar Sleeves 7-1/4" x 10-1/2" Plus Two 7/8" Non-Foldable Flaps - Pack of 50! These bags with their trademark 'S'-shaped flaps, 'ease-in' comics, holding them tightly to protect edges and corners. Made from pure 4-Mil thick Mylar with two 7/8" non-foldable flaps. Resistant to aging, decomposition, moisture, oxygen, and gas penetration. Not affected by fungus, mold, or mildew. Immune to insect and rodent attack. Sold in packs of 50. Measures 7-1/4" x 10-1/2".