Snowman Birthday Thank You CardsSnowman thank you cards feature a group of adorable snowmen that want to thank you SNOW much! With a blue snowy background is the 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. 5" X 5.