This series has a total of 12 models , including 10 regular models ,1 small secret model and 1 large secret model. The probability of getting a regular model is about 9.69%, and the probability of getting a small secret model is about 2.08% and a large secret model is about 1.04%. That is, every 96 models, there will be 2 small secret model and 1 large secret model, randomly replacing 2 regular models.
