I ordered two of these because I've had my nipples pierced for 10 years now, and I only wear gold jewelry but somehow had not yet managed to go through with purchasing 14k gold nipple bars.. until Automic Gold! These are everything I could have ever dreamed and hoped for. The medium length is perfect, not too short to where it's uncomfortable but not too long to where it snags on lace bras, loofahs, etc. My favorite thing about these bars is that only one side unscrews. This is a life saver and in the past, I've had nipple bars where both balls unscrewed on either end which meant they would get loose and I would always end up losing at least one. With these, I can just check the tightness of each one and I only have to worry about the one ball on each side. Additionally, the balls haven't even gotten loose and I wear these nonstop, 24/7. I also love that even up close you can't tell that one end is shaped into a ball and doesn't unscrew. It looks identical to the side that does unscrew, so they are aesthetically pleasing and just super practical.
If you are on the fence about these, I say do it! 10 years searching for the perfect nipple bars and I finally found it, my only regret is that I didn't purchase them sooner.