Package Contents : Each pack of watercolor postcards contains a total of 100 sheets, each paper is 4 x 6 Inch, it can be used to make wedding invitations, birthday or holiday cards, thank you cards, Christmas cards, and more Premium Cotton Paper: The blank watercolor cards is made of 140lb (300GSM) 100％ cotton, durable and our heavyweight paper cards absorbs water without warping or bleeding colors, providing the perfect canvas for your art Textured & Cold-Pressed: Our blank watercolor postcards pack has excellent water absorption. The textured, cold-pressed finish provides a scrub-resistant surface texture, ensuring excellent ink absorption and natural rendering of artwork Acid-Free Paper: These watercolor acid-free paper ensures the longevity of your artwork. Perfect for pencils, ink, crayons, watercolor paints, and other drawing pens, can be used for children's painting or professional painting Exquisite Gifts: Blank watercolor cards can be used to make postcards, can also DIY create your favorite patterns to use as gift cards, back-to-school supplies, Christmas art supplies, and craft painting supplies CXIIPOL Watercolor Paper Postcards 4x6 Inch, 140 lb/300 GSM 100％ Pure Cotton Watercolor Paper