Business Card Laminating Pouches are 2 1/4 in. x 3 3/4 in. and come in 5, 7 or 10 mil thickness. The thicker the laminating pouch the more rigid the result. A 5 mil pouch will be fairly flexible, a 7 mil pouch will be more rigid with some flexibility and a 10 mil pouch will be quite rigid.GBC HeatSeal LongLife - Premium quality & clarity with ultraviolet protection.GBC HeatSeal - New and improved clarity keeps laminated documents looking clear and crisp.Economy Pouches - Quality pouches provide clear laminated results, packaged in bulk for added savings.