1. There are two holes above the color needle piercer. Check whether it is unobstructed.

2. Insert the needle tip of the sewing needle upward into the hole of the colored needle piercer, and be careful to stab your hand.

3. Press the button in the yellow area inward by hand. After pressing it, you will find a small hook on the side of the color needle piercer, and thread the suture on the small hook.

4. After it is finally confirmed that the suture has been sleeved, release the hand holding down the yellow button and take out the suture needle.

The second kind of bottle gourd needle puncture device:

1. Thread the iron wire in front of the bottle gourd needle piercer through the pinhole.

2. Then thread the suture through the thread hole of the gourd-shaped needle piercer.

3. Pull out the gourd needle puncture device with suture. There are two wires in the pinhole, just pull one.