4.25 x 5.5" (A2) folded with blank Interior #110 100% recycled paper with with kraft brown envelope Commercially compostable plastic sleeve Blank inside Wonder and connection are Fox and Bear's specialty. They watched Jupiter and Saturn cross paths into a giant star. Then they started walking. Come along and see what they found! My cards are for curious people who seek a little something extra from their greeting card purchases. That's why I write my discoveries and stories on the back of each card. Created for curious people who wonder about nature and the universe, each card includes curious discoveries about science, history, creativity, or self-discovery on the back (see photo for card text). Blank for greetings for all holidays and any occasion.