We love helping you celebrate your cat's birthday! We've designed our own Happy Birthday balloons for you to fall in love with! This is our handmade in the U.S., fresh filled with our top shelf blend of 100 proof silver vine and Catnip CRUNCH balloon with sewn-in string streamers. We use just a little bit of stuffing for shape but the value is in the fact that it is 90% filled with what your cats love! Your cats will LOVE this toy! Balloon measures 3" wide x 4" high