10 Mil Key Card Laminating Pouches 2-1/2 X 3-7/8 Laminator Sleeves [Pk of 100] by LAM-IT-ALL Small Radius Rounded Corners for professional finished appearance 2.5 x 3.875 (metric 64mm x 98mm) and 10 mils (metric 250 microns) per flap Clear glossy polyester hot laminating pouches for paper lamination Try Authentic LAM-IT-ALL Trademarked  Laminating Pouches. You'll be Glad you Did. Includes at least 1 silicone coated laminator carrier to protect your machine's rollers if needed