ACCO Pressboard Report Cover with Tyvek Reinforced Hinge are made of 20 point genuine Pressboard. Preserve important documents for presentations or filing. Efficient two-piece steel fastener adjusts to the size of the contents, allowing binders to be stored in a minimum of shelf or drawer space. Color-matched, Tyvek-reinforced hinges ensure a long life. This report covers are for 11 x 17 inches sheets.