Wheels On The Bus Birthday Thank You CardsWheels On The Bus thank you cards feature a bright yellow school bus on a white background plus a colorful crayon inspired border in bright primary colors! These are a perfect way to thank guests for rolling by! 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