Dr Seuss The Cat In The Guess Whos 1 Year Old Balloon Set Get ready for a rhyming good time with a Dr. Seuss birthday party featuring a big time child favorite character, the Cat in the Hat. Float in the fun with a Dr. Seuss Balloon Bouquet! The Cat in the Hat Balloon 1 Count measures 34 Inch Guess Who's One Latex Balloon 8 Count 11 Inch; 8 11 Inch Blue with White Polka Dot Latex Balloon Red Latex Balloon 11 Inch 8 Count