Yes, all our A2 Cards are suitable as postcards. A2 cards are actually an 8 1/2 x 11 card that is cut into quarters. LCI offers the A2 cards cut to size and also the 8 1/2 x 11 card stock. You may want to consider the 8 1/2 x 11 if you have many post cards to print. Doing so would allow you to print 4 to a sheet then cut afterwords. It's a good way to save time! And, usually more economical to purchase the larger sheet. Before preparing a mailing we suggest contacting your local post office to make certain that your collateral is within postal regulations.