Exact gauge is not important. Any yarn that knits well on the standard gauge machine may be used.

This pretty hair scrunchie is knitted right onto a purchased covered elastic band. The majority of the designs in this book are created using the same basic technique. My elastic bases came from the Dollar Tree in a package of 8. It’s simple and quick and takes less than an ounce of yarn so you can make one to match any outfit, probably with the leftover yarn from the main knitting.

YARN, GAUGE, SIZE AND MACHINE
Use any yarn that knits about the middle of the dial on any standard gauge machine. Gauge is not very important. No patterning or ribber is required. One size is determined by the purchased elastic but you do have some room for self expression in the degree of ruffling created.

There is a video on my YouTube channel, theanswerladyknits, that demonstrates this method of attaching the elastic band.