One Jade Lane - Floral Festival Thank You Cards (Self-mailer) POSTCARDS "Postage Saver" (Set of 40). SAVE ON POSTAGE - Postcard Thank you cards will mail with USPS Stamps (currently only 34). POSTCARD Size: 4"x 6" - Printed on heavyweight (15 pt.) white, extra smooth stock. Set of 40 Floral Festival series - 4 designs, 10 of each. Package contains 40 high quality thank you POSTCARDS. Also available in folded cards and envelopes. (see other listing) Printed and crafted in USA.