The Mattel Monster High Lagoona Blue Daughter of a Sea Monster Doll 2016 Figure is a 11-inch play doll from the Monster High franchise. This girl doll, with blonde hair and wearing an outfit, is an original release by Mattel. Perfect for collectors or children who love the Monster High series, this doll is a must-have for fans of Lagoona Blue and the sea monster character. Ideal for imaginative play and display, this doll is a great addition to any Monster High collection.