I tried it on my underarms and it cut me on one side and not the other so I will not do that again. We will see how long these last before they break hopefully they won’t but we shall see. After reading a bunch of reviews for this pair I was still a little skeptical. Perhaps that’s why so many different reviews saying size up, size down, and true to size. But, after building a wood stand from spare 2x4s, the bike rack is raised enough the clear the wheel wells. They were the right match and Im happy. It Could potentially charge 2, but it would be very fiddly. No more straining to hear the dialogue in movies, or searching for your loudest rock/metal album to punch above the noise. I was real gentle with it too - I just used it for non-stress menu navigation in Elite Dangerous. I did not like them.