Hanging report covers feature Presstex that protects documents from the elements & hooks that allow easy file cabinet storage. Retractable hooks are designed for use in a file drawer or to stand upright in a bookshelf. Design includes color-coded Tyvek-reinforced hinge & pop-out center tab. Steel prong fastener holds up to 2" of paper. 20 point Presstex covers are durable & moisture-resistant.