BO = bind off
So your piece is finished! Congratulations! Now to get it off the needles and into use! This tutorial shows you how to finish off your knitted piece. We offer this in both video and written format.
Video Instruction: Binding Off ('Casting Off')\
Written Instruction: Binding Off ('Casting Off')
Knit two stitches. Insert the top of the left needle into the first stitch on the right needle. Lift the stitch over the last stitch you knit and over the top of the right needle.
One stitch remains on the right needle. Knit another stitch. Lift that stitch over the stitch just knit.
Continue in this way until one loop remains. Cut the yarn, leaving a tail of 4 or 5 inches and draw the end through the last stitch.