5x7 card stock

Common materials include 100% cotton watercolor paper, standard (uncoated) cardstock, and kraft brown cardstock made from recycled fiber. Some sets also include coated-paper envelopes paired with the cards.

Reported weights vary by card type: heavy watercolor stock is often listed around 140 lb, while printable cardstock is commonly shown around 80–83 lb. Product listings may also include corresponding gsm values in the item details.

Common pack sizes include 10, 20, 50, and 100 cards, so options range from small sets to bulk packs.

Watercolor card sets typically include a matching coated-paper envelope for each card—one envelope paired with each card in the set.

Cards described as 140 lb, cold-pressed, 100% cotton watercolor stock that are internally and externally sized are suitable for watercolor, gouache, ink, and fluid acrylic. These features help resist warping when using wet media.

A 5x7 card measures 5 inches by 7 inches (5" x 7").

Available tones commonly include bright white, matte ivory, glossy white, and kraft brown, offering choices from bright white to a rustic brown finish.

Some 5x7 watercolor cards are described as acid-free and archival and are internally and externally sized to help preserve color and extend longevity.