Show Horse Birthday Thank You CardsShow Horse thank you cards feature a pretty prancing pony with a beautiful paisley background. Topped off with a prize ribbon, they make a perfect way to send your thanks. Some features of our thank you cards: Professionally printed on 80# cardstock paper so you feel the quality. Teaches children how to send a meaningful handwritten note Easy to use because all you have to do is simply fill in and mail out 10 cards and 10 white envelopes included 4.