One Rainbow Unicorn Inflatable Horn Headband. Measures 9.5 inches tall from base to tip. Gallop the starry night away with this fantastic Rainbow Unicorn Inflatable Horn Headband! It features a swirly rainbow horn, dainty ears, and a white elastic band. Assembly is a snap; simply inflate, and secure the elastic headband comfortably around your head. Give one to each party guest to create a whole herd of magical unicorns!