Our 5 1/2" x 10 1/2" Panel "INSTRUCTIONS ENCLOSED" are USPS, UPS and FedEx approved. Made from a blended polyethylene plastic film in clear or white. Utilizing adhesives that stick well to cardboard, plastic, wood, glass, and metal, they can hold documents such as packing slips, invoices, warranty information, operation instructions, wiring diagrams, and manifest logs. 

*Sizes indicated are outside dimensions. Deduct 1/2 inch (13 mm) for inside dimensions. The 5-1/2" dimension listed is the opening. **Dimension sizes are subject to plus minus 1/8 inch variance.