From the pattern description:

“Even if you are a beginning knitter you can make this one-piece shrug knit in rib and garter stitch from wrist to wrist.”

Sizes: S/M (M/L)
Cuff-to-cuff: 70” (74”) 178 cm (188 cm)
Length: 18” (18-3/4”) 45.5 cm (47.5 cm)

Shrug is knit flat in one piece from cuff to cuff and seamed. Stitches are picked up for ribbed opening and knit in the round. Circular needle required.