Be your favorite cartoon character in this Ni Hao Kai Lan Romper Halloween Costume. Pick this girls Ni Hao Kai Lan Costume and you will be a hit at any party: Includes Headpiece and Romper. Available in Kids sizes Newborn and Infant. This costume is a officially licensed Ni Hao Kai Lan Costume. Don't want to go Solo? Pair up with our wide variety of TV and Movie Costumes and Accessories for Adults and Kids! The group that dress together, stays together!.