Classic Design: Clear window on the cover, kraft paper makes the paper envelope not easy to break or deform, you can better see and protect your cards and letters.(Does not include paper letters) Easy to Use: The window envelope with flap does not need tape, it is easy to open and use. The transparent cover makes it easy to see the contents of the envelope.(This envelope does not contain glue and cannot be sealed alone) Wide Range of Uses: These kraft envelopes can not only be used daily to store many small items and protect your documents, but also can be used as gift card holders, thank you cards, invitations, business cards, greeting cards, etc. or be placed on bouquets to express your blessings. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.