This ring allows you to push buttons without your skin contacting the button. This was designed for people who live in cities where pushing elevator buttons is a part of daily life. If you don't feel like wearing gloves, carrying around a push stick, or aiming with your elbow, this is another approach to pushing buttons that you can wear! Just be mindful not to touch the push surface when moving the ring. I have uploaded the scad file so you can adjust to your finger size.