5. Threading the mock safety machine/ Ukufaka irhali ye overlock (mock safety)
https://www.youtube.com/watch?v=5-fhVKD5VaY
https://www.youtube.com/watch?v=5-fhVKD5VaY
https://www.youtube.com/watch?v=Y-u9-kNQ8w4
https://www.youtube.com/watch?v=v6f6UVTwsHM&t=1s
https://www.youtube.com/watch?v=0-h5v8g98ik
https://www.youtube.com/watch?v=oJY5RipYsqM