How is the net bag of basketball woven?

Eight red lines are needed. The specific operation is as follows:

1. Tie a knot at one end of the red line and then tighten it.

2. Then tie a knot every two adjacent red lines, and four knots should be side by side.

3, and so on, continue to tie the knot between two adjacent red lines on the third floor, side by side.

4. In the fourth row, continue to tie the knot side by side with two adjacent red lines. At this time, the basketball net bag was formed.

Finally, you can tie a big knot at the end of the red line, which is more firm.