Magic Ring
an adjustable loop that starts a round with no hole at the center

The magic ring (also called a magic circle or adjustable ring) is a way to start working in the round without leaving a gap at the center. Instead of chaining a small ring and crocheting into it, you work your first round of stitches into a loop of yarn, then pull the tail to close it tight. It's the standard start for amigurumi heads, hat crowns, and any circular motif where a visible hole at the middle would be a problem.
There's no US/UK split on this one. It's a technique, not a stitch, and the abbreviation "MR" is used the same way in both systems.
How to work it
- Cross the working yarn over the tail to form a loop, with the tail hanging behind.
- Insert your hook through the loop, yarn over, and pull up a loop. Do not pull the tail yet.
- Chain 1 (this does not count as a stitch).
- Work your first round of stitches by inserting the hook through the loop, catching both strands of yarn that make up the ring.
- Once all stitches in the first round are complete, pull the tail firmly to close the ring. The stitches will cinch tight around the center point.
- Join the round or continue in a spiral, depending on the pattern.
When to use it
Use a magic ring any time a pattern starts "in the round" and you want a solid, hole-free center: amigurumi, coasters, hat crowns, and granny-square-style motifs. A chained ring is a faster alternative when a small center hole doesn't matter or when working with slippery yarn that resists cinching.