The 1990 Costume Ball Ken doll by Mattel is a vintage collectible that comes in its original unopened box. This 12-inch fashion doll features blonde hair, blue eyes, and is considered a boy doll. The set includes accessories and is part of the Barbie Contemporary line, making it a sought-after item for collectors of Barbie dolls and merchandise. With its original packaging, this doll is a rare find for those looking to add a piece of Barbie history to their collection. Box is beat up as shown in photos.