What is the assembly method of six round toys?

The assembly method of the six round toys is as follows:

1. First, number the modules in sequence, as shown in the following figure:

2. Then combine modules 1 and 2, as shown in the following figure:

3. Connect Module 3 to the appropriate bayonet as shown in the figure below:

4. Insert Module 4 into the protruding point of Module 2, as shown in the following figure:

5. Push the module 5 from the side with the largest gap, as shown in the following figure:

6. Fill the No.6 module into the last gap to complete the ball spelling, as shown in the following figure: