ADVANTUS Sturdi-Kleer Multi-Use Polypropylene Envelopes, 3 x 5 Inches, 50/Pack (ANG1420-50) Pack of 50 multi-use Sturdi-Kleer Multi-Use polypropylene envelopes Size is 3 x 5 inches each Thumb cut fronts and easy open feature Double weld reinforced seams Frosted, see-through