Strathmore Watercolor Cards Acid Free, 10PK 3 1/4 X 4 7/8 by Strathmore Sale $7.99 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Heavyweight watercolor cards have excellent surface strength and resists buckling. Ideal for watercolor, gouache, or acrylic paints. Cards: 140 lb / 300 gsm Envelopes: 70 lb. / 104 gsm Cold Press surface
