Letter Laminating Pouches 5 Mil 9 x 11-1/2 Hot Qty 100 5 mils per flap adds 10 mils total to your paper sheet 9" x 11-1/2" (metric 229mm x 292mm and 125 microns thick) Clear glossy finish with standard 1/8" radius rounded corners 100/box includes silicone coated lamination carrier to protect your laminator's rollers.