ENHANCE LONGEVITY: Improve the lifespan of your comics with Big Fudge's acid-free, crystal-clear comic book bags and boards, providing true-to-size protection for current comics from 1990 onwards. ACID FREE, ARCHIVAL QUALITY: Eliminate worry with each acid free comic book sleeve's 3% archival buffer coating. This protection shields your valuable collection from the effects of time and the elements. EFFORTLESS INSERTION AND SEALING: Simplify the handling of magazines and comics with our unique divider strip design, allowing for easy insertion and sealing, exactly the way you prefer. CUSTOMIZE YOUR PROTECTION: Tailor the look of your comic book covers with flexible flap options. If you prefer a sleek look by folding the flap in, or extra security by gluing it down, the choice is yours. HEAVY-DUTY DURABILITY: Sturdy protection with ultra-thick 24 pt cardstock and 3 mil plastic construction ensure that your comics are shielded against wear and tear, keeping them pristine for years to come.