These cards are 4" x 4 1/2". I am selling them as a set of 4--2 birthday cards and 2 thank you cards. 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 (lowest priced card is free). The individual price of these cards is $2.50. Shipping: UNLESS you request otherwise, I ship everything by First Class mail with a tracking number. Upon your request, I can ship by Priority US Mail for $6.00. (Please see my shop policies.) If your shipping address is in Alaska or Hawaii or outside of the U.S., please message me before you purchase so that I can calculate shipping costs. Thanks for shopping!