Bring a fantastical colour-change transformation to playtime with Barbie Dreamtopia Rainbow Magic Mermaid doll. This Barbie Dreamtopia Rainbow Magic Mermaid doll features a colour-change transformation that lets imaginations dive into their most colourful fairytales yet! Barbie mermaid doll features a neon-bright fantasy look with a tiara in her rainbow hair, a vibrant multi-coloured tail and a bodice with sea-inspired accents. Ready for a colour transformation? Dip Barbie doll in warm water and watch her hair, bodice and tail instantly change colour to reveal a rainbow of pretty pastels! Dip her in ice-cold water to see her change back to her original neon-bright look and relive the transformation again and again.