I have a ball-in-plug bar-end mirror ... after a short while it got so loose it wouldn't hold adjustment. I tried duct tape, then a piece of old inner tube ... the plug got offended and spat the mirror out on the pavement.

I insisted an d it is back in place and working ... we shall see for how long.

i will probably buy a couple different models if i see them on sale. There has to be Something for when I don't want to wear a helmet or glasses.