【harrows】shaft rings 's Japan Review

There are champagne rings and other things that are more difficult to dislodge.
You might want to use that.

It is small but sturdily made.

It is sturdy and does not break. It is good to have a spare because of the possibility of loss

Purchased when I was a beginner
Those who don't drop it don't lose it, and those who do
Those who don't lose it don't have enough
Teething Parts

It's also attached to the shaft.
It's for people who don't feel safe without a few.
I'd buy something else by design.