6. To add the second side to the beaded spacer, pick up two 4 mms, and sew through the edge 4 mm your thread exited and the first 4 mm picked up in this step (FIGURE 5, a–b).
7. Pick up one 4 mm, and sew through the next edge 4 mm, the first 4 mm added in the previous step, the 4 mm picked up in this step, and the next edge 4 mm (b–c).
8. Pick up one 4 mm, and sew through the 4 mm added in the previous step, the edge 4 mm your thread exited, and the 4 mm picked up in this step (c–d).
9. Repeat steps 7 and 8 (d–e and e–f).
10. Sew through the second 4 mm added in step 6, the last edge 4 mm, the 4 mm added in the previous step, the 4 mm added in step 6, and the next edge 4 mm (f–g).