· Measure: These 9" x 11.5" laminating pouches fit letter-size documents (8.5" x 11") with 0.25" sealed edges. The 3mil thickness offers the ideal balance - providing substantial protection for daily use while ensuring exceptional flexibility for smooth operation in thermal laminators (not self-adhesive)· Premium Material: Made from commercial-grade polypropylene, these laminating sheets create a water-resistant barrier for documents and photos. The tear-resistant edges withstand frequent handling, ideal for preserving important materials· Clarity & Smooth Surface: Featuring 97% light transmission for distortion-free viewing, the smooth surface of these laminated paper accepts dry-erase markers without smearing. Rounded corners reduce edge curling and improve handling safety· Wide Application: These versatile lamination sheets are suitable for documents and photos up to 9" x 11.5", including Letter (8.5" x 11"), Half Letter (5.5" x 8.5"), Junior Legal (5" x 8"), and common photo sizes such as 4" x 6", 5" x 7", and 8" x 10"· Customer Service: We provide After-sales service, if there is any questions about lamination sheets 8.5 x 11, please feel free to contact us