Twinklers Rainbow Ballerina with Fiber Optic Skirt, Toddler 100% Polyester Hand wash 1" high 13" wide Ballerina costume with pastel stripes on the sleeves, skirt, and neckline plus white fiber optic lights in the skirt Accessories available separately Twinkle lights activated by push button, intermittent twinkles; replaceable 1.5 volt button cell battery NOTE: Costume sizes are different from clothing sizes; review the Rubie's size chart when selecting a size and consider buying the next size up if you are at the top of a size range Rubie's offers a range of Twinkle costume dresses, put together a group of twinkling for a fun costume look