Nothing and something, that is a Sleeveling. A dear child has many names, and this design has many functions.
Sleeveling is a sleeve with
shoulder shrug, a scarf, or a sweater when knitted as a pair. There are
also other possibilities, for example as a combined hat and scarf.
If you want 2 Sleevelings, you
need 2 additional yarn balls, either in the main color or another
color. So you can knit either 2 similar Sleevelings or 2 Sleevelings
with a different main color, but the same stripes.
Dutch digital pattern.
You'll be needing a circ. needle US 3/ 23", and a crochet hook 4/E to help drop the stitches.