Truly am sorry I cant answer this question for any of the ads for plugs. If I go out today I will def take them along to get sized but auctions are all ending soon so I can't make any promises. Sorry again!
It shouldn't be a hard question. You said they were too small for you right? Okay by how much? What's your size and just go down a size if its just a bit too small. Or print out a ear stretching guide and put the plugs onto it and see what size they are.
Mine are quite a bit bigger and I taped up to this size that's why I'm clueless, have never checked my size. Didn't make it uptown but tried printing a chart, considering when I held mine uP to the printout n it said I was just over an inch I don't think the printout was accurate AT ALL. Do they not have pennies in the states? I have a few US pennies in my change pile, same size as Canadian penny.