Avery(R) Postcards, Matte, Two-Sided Printing, 4-1/4" x 5-1/2", 200 Cards (8387)Category: Pietro PostcardCreate and print your very own postcards with the White Avery Printable Postcards. You can design the postcards on your computer using free templates that are available from avery.com, and then, print as many as you need out on the Avery postcards for a superior and professional-looking appearance. The matte postcard paper for Inkjet printers in this box of 200 is made of thick, sturdy card stock that will hold up during the wear and tear of traveling through the mail system. The card stock also contains 11 percent post-consumer recycled content. With the White Avery Printable Postcards, you can customize a postcard for any occasion in a matter of minutes.