Measured mr base ring size at around 55mm, yet 45mm seems to hold better as slipped out nano cage with large ring. Are sizing measurement methods wrong? Is it just see?
For most guys,45 mm is ideal;
42 mm is for experienced pervs,
And 40 mm - or less is quite intense!
I've only ever managed a 40 mm once,but had to wait for a day or so to slide it off
