These blank cards are made of 400 Series Mixed Media heavy-weight 140lb. (300gsm) paper. The acid-free paper features the attributes of a watercolor paper but with a vellum drawing finish, making the cards ideal for watercolor, gouache, acrylic, graphite, pen & ink, colored pencil, marker and collage.
Cards measures 3.5" x 4.8", pack includes 6 cards and envelopes.
