Teddy Bear Picnic Birthday Thank You CardsTeddy Bear Picnic thank you cards feature an adorable teddy bear on a picnic. A background of wood planks and checkered banner for a fun 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. 5" X 5.