Hold the airbag of the hat and the ears can move up and down.23.62in(Manual measurement, there may be an deviation of 0-1in.)Suitable for most adult and child head sizes.Cute shape with lovely express, kawaii and charming. Made of high quality materials, feels good and safe. Attached is 2 dangling flaps with poms designed to keep warm in autumn and winter warm.The light switch inside the dangling flaps. Touch it and you will find small pieces of paper inside the flannel, pull the paper out and press the switch, the hat will start to shine. The hat can flash last for about ten hours. The battery is installed in the flannel and the battery cannot be replaced.It is not only a hat, but also a plush toy. Can be used as an Easter / Halloween / Christmas / various holiday party hats. Perfect for winnter, spring, autumn to wear. Adults or kids super cute gift.