DK weight yarn
Cast on 40 st, place marker, join in the round.
Row 1: knit 1, purl 1, until marker.
Row 2: purl 1, knit 1, until marker.
Repeat the last 2 rows 8 more times , bind off in pattern, do not cut the yarn, but pull the ball through the last loop.
Fold the tube in the middle with the yarn in the middle. Make the middle by circling around secure on the backside and sew a safety pin or a barrette to the backside.