how to crochet an adjustable ring
1. To begin, wrap the yarn loosely around 2 fingers, the loose tail near your fingertips and the working yarn to the inside.
2. With the crochet hook, bring the working strand under the outside strand, then draw a loop through, as shown.
3. Draw through another loop to complete the single crochet. When all the stitches called for have been worked into the ring, close the ring by pulling the loose tail.