Sheet protectors are widely used as a tool to keep documents in their original condition. Once inserted into the holder, the documents instantly have a plastic, protective cover, which will help eliminate damage and tearing while they are being stored. No sheet punching necessary, keeping documents in original condition. Top loading sheet protectors provides permanent storage for your materials. Standard weight polypropylene provides durable storage for documents that are A4 in size. Seven-hole punched. Acid-free material eliminates photocopy transfer.