I wanted to try the small size, so I swapped them with the mediums. I put the mediums in the paper case where the smalls came from. The four possitions are all the same size.
Then I needed to swap them back because the smalls were too small. I'm glad I realized what went wrong; a paper tab that holds it came undone and got stuck inside the Airpod. I only noticed it because I couldn't get the small back into the paper case.
I couldn't get it out, and I came very close to pushing it out from the other side when I discovered there's a little screen in there to keep gunk out of the speaker. Had I pushed it out, I would've broken that sreen. So I used a little pin to remove the tab. I suggest you not re-use the paper case as this is likely to happen. I wonder how many will use their Airpods with a tab in there and not know it.
Then I needed to swap them back because the smalls were too small. I'm glad I realized what went wrong; a paper tab that holds it came undone and got stuck inside the Airpod. I only noticed it because I couldn't get the small back into the paper case.
I couldn't get it out, and I came very close to pushing it out from the other side when I discovered there's a little screen in there to keep gunk out of the speaker. Had I pushed it out, I would've broken that sreen. So I used a little pin to remove the tab. I suggest you not re-use the paper case as this is likely to happen. I wonder how many will use their Airpods with a tab in there and not know it.