Best way to choose from several customization and with best options and Print Flat Brown Kraft Greeting Cards for any event in your life! 1. Thick Brown Kraft Uncoated - 18 pt. paper stock and with full-color printing on the front and back. 2. Add a white mask file to make the printed colors more vibrant on one or both sides as well. 3. 5 size options ranging from 4.25" x 5.5” to 6" x 6" with your custom design printed. 4. Choose matching sized Brown Kraft paper envelopes to complete the Greeting Cards. 5. Order between 100 to 1000 cards with a turnaround time of 1-2 or 2-4 business days.