Second, fold the pulled belt in half at the quarter position.
Third, fold the belt again on the basis of folding it in half.
Fourth, the lower belt is folded in half.
5. Press the lower folded belt under the upper folded belt. As shown in the figure:
6. The upper belt passes through the cross hole, as shown in the figure below.
7. Pull out the belt at the second fold above.
Eighth, pull it back to both sides and adjust it.