*Mix and Match ANY 5 cards for 20% Off (5 for $12)
*20% Discount is automatically applied at checkout on orders of 5 cards or more

Product Details:

-Deluxe Matte Cardstock
-15pt thickness / 350gsm weight
-4.25” x 5.5” (no envelope necessary for mailing)

I have had no issue with leaking or imprinting using markers, fine art pens, or ballpoint pens on these cards.