Lineco Archival Print Sleeves with Side Flap Closure, Acid-Free Polypropylene, 3.5 X 5 inches, Pack of 25 (AW14433-25) Protect prints from moisture - fingerprints and dirt Ultra-clear and acid-free polypropylene for easy viewing Help prevent damage from fading and handling Each sleeve measures 3-1/2 by 5 inches Package of 25 sleeves