The top / cardigan has top-down SEAMLESS construction - no sewing required except for weaving loose ends. The top can be worn both as a top with button closure at back, or as a short-sleeve cardigan with button closure at front. The hat is knitted in the round, no seams and sewing required. This is a quick 3 - 4 hour project; great for last minute gifts. BASIC SKILLS NECESSARY knit, purl, work simple lace GAUGE 21 sts and 26 rows = 4" x 4" in St st. 20 sts and 30 rows = 4" x 4" in Lace patt. SIZING / FINISHED MEASUREMENTS One size - to fit American Girl or any 18" doll.