Barbie Color Reveal dolls deliver an unboxing experience full of surprises -- six of them! A Chelsea doll with colorful mermaid tail is guaranteed but each doll s look remains a mystery until revealed. The packaging is part of the fun -- pull the strip to remove the outer layer and reveal a clear tube. Inside are a Color Reveal Chelsea mermaid doll whose full look is hidden behind the metallic sea blue and rainbow-print coating and four bags with surprises. Remove everything and fill the tube with warm water then insert the doll and swirl around. The water turns a shimmery sea blue and when the doll is pulled out their features are revealed! Each Chelsea mermaid doll represents a different color of the rainbow with long color-streaked hair and a patterned tail and the surprises continue..