A 3-needle join can be used to add a decorative strip to your work or to make a hem. I have used it to add things such as teeth or petals to my stuffed toys.
Place the needle holding the decorative stitches on top of the right side of your work.
Work the 3-needle join by knitting together a stitch from the decorative strip (front needle) and the main work (back needle).
Repeat until all stitches from the decorative strip have been attached to the main work.
Here is the garter stitch strip worked into the main knitting.
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