10 Mil Matte Butterfly Pouch Laminates with 1/2" HiCo Magnetic Stripes - 25 Pack Credit Card Size - 2.125" x 3.375" Use With Teslin To Form A Solid, Borderless ID Card 25-Pack Is Enough For 25 ID Cards 10 Mil Pouches Produce An Ideal Card Thickness When Used With Teslin 1/2" HiCo Magnetic Stripe Allows You To Store Additional Data