An topic on this forum has a link to an article regarding the antimicrobial properties of copper.
However, even if brass is as effective, the prices seem outrageous.
I use the back of my hand to press larger items such as pedestrian crossing buttons at traffic lights and the back of my index finger for smaller things such as the buttons on lifts and the LCD screens at self service supermarket checkouts.
No extra weight, no cost, and easy to clean with sanitizer.
