Six Runner Duck Cards The perfect card to send to a keen runner, fitness fanatic or Park Run Enthusiast! This little guy might not look like much of an athlete, but he's giving it his all! Blank inside, this card can be used for any occasion. • Size: The card is 25.4 ants long x 35.6 ants long. Or, for those who don’t work in ant sizing, it’s 5”x7” (127mm X 178mm). • Professionally printed onto heavyweight card stock: 300gsm ivory hammered card. The card comes with a recycled brown envelope and is wrapped in a cellophane sleeve.