HAPPY BIRTHDAY: Our cute, wonderful postcards measure 4x6 ready for the mail! No envelope necessary. Just add a stamp FULL COLOR ON BOTH SIDES: 40 Beautiful Birthday postcards in full color. Easy to fill out INEXPENSIVE AND CONVENIENT: No envelope necessary, just use postcard stamp and drop it in the mail FOUR FUN AND RUSTIC DESIGNS: 10 Postcards of each design, plenty for everyone you care about FAMILY OWNED & OPERATED: Our cards are designed and printed in the USA. We take pride in our work and want to make sure that the card your friends & family receive is top notch VERSATILE USE: These postcards work well for schools, large families, churches, play groups, or classes that have a lot of people GENDER NEUTRAL DESIGNS: Bright and colorful cards suitable for children as well as adults with plenty of space for personalization A variety of birthday postcards. Easy to fill out and inexpensive to send. These work well for schools, large families, churches, play groups, or classes that have a lot of people. It can get expensive buying cards, and not only is this way cheaper, it is also cheaper to mail. The cards are all bright and colorful and gender neutral. They are good for children as well as adults. They have plenty of space for personalization. They are good to have on hand, and the price is great for the amount