Circular knitting is a technique used to create seamless, tubular fabrics using circular needles. It is often used for knitting items such as socks, hats, and sweaters. There are several different ways to join circular knitting, but the most common method is the three-needle bind-off.
To join circular knitting using the three-needle bind-off, you will need three needles of the same size. Start by knitting the first stitch onto the first needle. Then, transfer the next stitch from the second needle to the first needle. Knit the next stitch onto the second needle. Transfer the first stitch on the third needle to the second needle. Knit the next stitch onto the third needle. Continue in this manner until all of the stitches have been joined.