These cards are 5" x 6". I am selling them as a set of 4--2 birthday cards, 1 thank you card and 1 blank on the inside. The baseball in the center of the card and the red and blue paper is attached to the card with mounting tape so it pops up off of the card. I have to sell cards as a set because this site has a $10 minimum. However, you can buy any combination of cards you see in my shop. Just send me an e-mail at email@example.com. I can add a custom item to my shop for you as long as it meets the $10 minimum. I also have an offer--buy 4 cards, get the 5th free (least expensive card is free). The individual price of these cards is $3.50. I don't charge for shipping. Thanks for shopping!