This Barbie Dreamtopia Rainbow Magic Mermaid doll features a color-change transformation that lets imaginations dive into their most colorful fairytales yet! Barbie® mermaid doll features a neon-bright fantasy look with a tiara in her rainbow hair, a vibrant multi-colored tail and a bodice with sea-inspired accents. Ready for a color transformation? Dip Barbie® doll in warm water and watch her hair, bodice and tail instantly change color 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.