Ever thought the traditional 4" x 6" watercolor postcard wasn't big enough? Well, Bee Paper has solved that problem for you! Our 160 lb. (260 gsm) watercolor postcards are acid free and an expanded 5" x 7" that will give the artist an additional 30% of artwork area! The cards are blank on one side and printed on the other. Letter size postage required. Each peggable pack contains 15 cards.