This is a handmade set of child's pajamas with a matching pair for your 18" doll, which will fit your American girl doll. They have overlocked seams so they are nicely finished. This set also comes with a tinker bell hair clip for your little one and her doll. They are brand new flannel and never worn. The pajamas are size 8 and the measurements are: top. bottoms chest 16". waist 21" length 19.5". rise 8.5" sleeves 19". inseam 19"