How to make darts?

The stacking steps of darts are as follows:

Tool: origami.

1. First, prepare two square pieces of paper with the same size, fold the four sides of each piece of paper in pairs, and then unfold them to leave creases.

2. Fold the upper and lower edges of each piece of paper to the middle crease and align them.

3. Fold the upper and lower long edges of each piece of paper in half along the middle crease, as shown in the figure.

4. Fold the right side of the left paper along the middle crease and align the edge with the crease. On the other hand, the paper on the right is folded down along the middle crease and the edge is aligned with the crease.

5. Fold the other side of two pieces of paper along the center line, in the opposite direction to the previous step. Two such components are obtained.

6. Turn both parts upside down and fold the upper and lower ends into triangles like this. When folding, the triangle cannot be folded backwards.

7. Fold the upper and lower corners of the two parts to the middle along the overlapping edges to obtain two such shapes.

8. Spread all the four corners folded in half in the last step in the middle, and then stack the middle parts of the two parts together like this. When stacking, pay attention to the side with the gap in the middle facing outwards. Then insert the four corners into the gap in the middle and assemble them, so that the beautiful dart is folded.