Sanrio Hello Kitty Flipeez Hat - New with Tags Squeeze the air pump (left side tassel when wearing) and HK's hands flip out, release and they flip back in Soft knit exterior with fleece interior Pink glitter bow & faux fur details Opening Measures: 9.5 inches across, laying flat Please refer to above measurement for best fit. Packaging shows this is for ages 4+. May also fit small size / petite adults.