Mattel Disney Sofia the First Mermaid Sofia Bath Doll(Discontinued by manufacturer) Make bath time a total splash with the light-up Disney Sofia the First Magical Lights Mermaid Doll! Made for fun in the tub, this doll lets kids recreate the unforgettable moments when Princess Sofia transforms into a mermaid and has underwater adventures with her new mermaid friend Oona. Dip Sofia into water and watch as her amulet glows and her glittering mermaid tail lights up in a beautiful rainbow of colors! Girls can also make Sofia light up when she's out of the water by pressing the seashell at her waist. Doll cannot stand alone. Requires 3x 'AG13' batteries, Included. Ages 3 and up.