About This Archival-Quality Magazine Backing Boards: Made from acid-free 24 pt. solid bleached sulfate, these magazine boards are buffered with calcium carbonate to safeguard your valuable issues and crafts long-term. Independent Lab Tested: BCW’s magazine book backing boards meet industry archival standards and are independently tested to ensure quality, performance, and reliable preservation for any collection. Precision Cut for Perfect Fit: Designed for use with magazine bags and boards, these magazine boards are cut to fit snugly into sleeves sized for 8.5" x 11" publications, ensuring secure support for display and storage. Versatile for Crafts & Fabric Storage: Beyond comic and magazine board use, customers love these as magazine boards for fabric, notepads, shipping protection, and ephemera support. A favorite among quilters and crafters! Premium Construction: Made from 24 pt. solid bleached sulfate and coated on one side, these backer boards add rigidity and structure to your magazine sleeves, keeping your collection clean, flat, and professional. Overview Material : Paper Brand : BCW Color : Black Style : 200 Pack Max Input Sheet Capacity : 200