Inside the Floret Mobius Headband crochet pattern you will find multiple sizes for the Headband. You will also find step-by-step Picture Tutorials for the start of the mobius part of the pattern. The pattern is called Floret for the floret stitch used to create the design.

I used Red Heart Super Saver
#4 ply Worsted/Aran Weight Yarn
US H Crochet Hook or 5mm

The sizes included in the pattern range from 0-3 months up to an Adult Large.

There are Picture and Video Tutorials inside to help you with the Mobius stitch.