Having a Dr. Seuss™ themed birthday bash or holding a Dr. Seuss™ Day at school? Then these pop-out pens are the perfect addition to your party! Great as giveaways or carnival prizes, these Cat in the Hat™ approved pens pop with a push of the button and are just what you need to make writing and doodling more fun! Plastic. 7" ™ & © Dr. Seuss Enterprises, L.P. All Rights Reserved.