U.S. postal customers will soon be able to add a scented stamp to their mail.

The U.S. Postal Service is introducing its first scratch-and-sniff stamps. The Frozen Treats Forever stamps will be unveiled June 20 in Austin, Texas. The stamps can be pre-ordered at this link for delivery shortly after the June 20 issuance.

The stamps will feature illustrations of a variety of ice pops with scents such as kiwi, watermelon, blueberry and orange designed to "add the sweet scene of summer" to letters. the USPS said in a statement.

The book of 20 stamps depict water color illustrations by Margaret Berg, with the 10 different stamp designed including two treats. The words "forever" and "USA" are printed on the bottom of each stamp.

The stamp's official unveiling will be held at a children's museum in Austin.