Dancing Unicorn Birthday Thank You CardsDancing Unicorn thank you cards feature an adorable unicorn prancing over a rainbow. A beautiful cloud background will make this a magical way to say 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. 5" X 5. 5"so