The magic ring, also known as the adjustable ring or invisible ring, is an essential technique in crochet that allows you to create a closed loop without leaving a visible hole. It is commonly used to start amigurumi (small crocheted toys), but it can also be used as a foundation for flat circles, such as granny squares and coasters.
The main advantage of using a magic ring is that it provides a secure and adjustable starting point for your crochet project. This is especially important when working with small or delicate yarns, as it helps to prevent the stitches from slipping out.