I have severe arthritis in my hands, a trigger finger, and following a nasty fall ( breaking my right wrist) I have now got a distorted wrist which cannot be set. I was so frustrated not to be able to write with a pen without the pain becoming too much. I have always kept a diary and write all my own cards etc. This ring-pen is a real life changer and I am back to being able to do more of the things I want to do