Blue Camping Birthday Thank You CardsCamping thank you cards feature a rustic wood border with evergreen trees, a camp fire, blue lantern, and a nostalgic blue striped tent all the camping essentials! 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.