The Vintage 1998 Mattel Barbie "Fashion Avenue Boutique- Red and Blue" #18126 is a collectible fashion doll set that includes a red-haired Barbie doll and various doll accessories and fashion items. This Barbie doll, part of the Fashion Avenue Boutique product line, measures 11.5 inches in size and comes in its original unopened packaging. With the iconic Barbie franchise and original design, this vintage Barbie set is a sought-after item for collectors and fans of retro dolls from the 1990s.