This pack of 25, 9 x 12" Polyester Sheets from Print File can be used to enclose documents, incorporate within a bookbinding process, or serve as a surface lining. Each sheet measures 9.375 x 12.375", is 3 mil thick, and is made from clear, archival polyester.

When used to enclose a document to provide it with double-sided, edge-to-edge protection against dirt, dust, or moisture, two of the included sheets are able to hold pages or photographs measuring up to 9 x 12". They can be bonded together with separately available Print File Double-Sided Tape to form a clear and pH-neutral seal that is designed to prevent acid damage to an enclosed item.

Similarly, with an individual sheet, the outer surface of a book cover can be made more durable and easier to clean, while single or multiple sheets applied to the surfaces of shelves or the interiors of boxes protect items that come into contact with them from unintentional exposure to potentially harmful chemical substances.