How to Crochet - Fastening Off
When you finish a piece of crocheted fabric, you'll need to fasten off the yarn and secure it so the stitch will not unravel. Simply cut the yarn leaving a few inches of tail. Then, with your hook, draw the tail through the loop on your hook. Remove hook and pull on tail to tighten. With a yarn needle, weave the tail through the stitches of the fabric to hide it.