Because not all vaginas are the same Lunette comes in 2 sizes
Model 1 and Model 2
Factors to Consider When Choosing Your Size
The amount of flow
This is the most important factor when choosing the right cup. As a general rule we can say that Model 2 is best for medium to heavier flow and Model 1 for lighter flow.
All vagina’s are different! Because of this we sometimes recommend the smaller Lunette cup where your vagina is shorter (you can easily feel your cervix or active spotswomen)