The stitches are formed over the pin, providing more thread in each stitch so the edge won't pucker. The stitch is elastic, making it ideal for seams similar to overlock.
- 2 Red Box: A
- 2 Snap On: A B1
- 2 White Box: B C D Ea2-4 Eb2-4 F
- 2A White Box: C D Ea3+4 Eb3+4 F