How do you guys switch needles on insulin pins. I've got teurmo 100unit slin pins, but I don't see how the needle can come off to put a new one on?
You don't. It does dull a little when you go through the stopper, but with that small of a gauge it really isn't an issue.
there ARE slin pins with removable needles, but they are kind of rare, and a niche item,