Make a real splash with the Barbie Rainbow Lights Mermaid doll! Dip this Barbie doll into water to see her mermaid tail glimmer with colorful lights inspired by a sparkling rainbow. It's a total wow moment and so easy to start. Simply press the button in Barbie doll's necklace to switch her to "on" mode, and dip her into the tub or pool. The colorful light show starts automatically when activated by the water. Or bring the magic ashore, you can push the button in the doll's necklace to enjoy the light show without water. A rainbow tail, "pearl"-sculpted belt, pink-streaked hair and princess tiara complete the head-to-toe magical mermaid look. Tell all sorts of fantastic fairytales and underwater adventures with this gorgeous mermaid doll. Includes Barbie mermaid doll with light-up feature. Doll cannot stand or swim alone.