I want to know the truth, no myth or lore or joke or fantasy answer, just the honest to god truth.
When i say 4″ I mean to say that the lenght is 4″ I know that in terms of expansion it can it can expand to take in greater girth and personally i thing girth matters more than length and also how you do it

Why do they say size matters? there is only 4″ os space inside.Tell me does it really matter? Truth only?