4.25" x 5.5". On the back of each Central & Gus card is a whimsical tale of the animal featured. Entirely collectible, these stories intertwine, creating a much loved community of characters. We donate 10% of gross sales to animal welfare. Forest Stewardship Council®-certified, 100% post-consumer recycled fibre paper. The paper manufacturer purchases enough Green-e certified Renewable Energy Certificates to match 100% of the electricity used in its operations. Proudly made in the USA.