Threaded Back Stitch:
It is same as Laced Running Stitch. Just the Running stitch is replaced by the Back Stitch. Threaded Back Stitch looks amazing when clustered together for borders. With the same shapes, it gives an wavy look.
1. Pull out the threaded needle through the lower corner of the first back stitch.
2. Pass the needle from lower to upper direction under the first stitch.
3. Again pass the needle from upper to lower direction under the second stitch.
4. Continue the process.
The Picture Guide: