5 Mil Credit Card Laminating Pouches 2-1/8" x 3-3/8" (500/bx) Heat activated thermal adhesive on polyester plastic film Clear glossy finish, 5 mils per flap, standard 1/8" rounded corners 2.125 x 3.375 ( 54mm x 86mm ) and 125 microns per flap 500 pouches per box and includes at least 5 silicone coated carriers