They are 3/4... well, the other one is a little smaller because it has "cats a$$" syndrome; I've had to stop stretching the left one at 3/4 a few years ago because the right is having too much trouble catching up. I've been stretching them since '95.
Them and us,
Hehehe... they prolly look like 1" 'compared to my teeny tiny self
I want to stop at 1", and should've reached that size a long time ago if my right ear wasn't such a .......