BA-13 Material:titanium then we both have a

then we both have a same size reference

For other sizes

If you are new

5mm-15mmTo figure out which sound/dilator is best for you

the vibration stimulus cannot be transmitted to the glans

BA-13 Material:titanium then we both have aaterial: Stainless Steel TitaniumThe below 3 sizes is must needed: 1. Chastity Cage Overall Length(over 45mm,the cage shape would be curved)2. Penis Tube Inner Diameter 3. Base Ring Inner Diameter The original lock mechanism is permanent lock,once insert the permanent lock gear to the gap,the penis tube can't be removed from the base ring,the chastity cage will be 1 piece completely,makes it become permanent chastity cage. There is no way to escape