Frosted Allegro Self Sealing Cellophane Envelope Bags 6.25 inches x 12 inches. 10 or 100 cellophane bags sold per pack. These bags can also be used as envelopes for mailing. Great for all types of literature; use for fliers, brochures, invitations, postcards, or greeting cards. Bag background is clear. See our Cellophane BagDirectory for More Ideas and Cellophane Bag/Envelope Sizes.