Jewel Black Self Sealing Cellophane Bags 5.5 inches x 8.25 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 Bag Directory for More Ideas and Cellophane Bag/Envelope Sizes.