This nipple barbell has a simple design that consists of a bar with two balls, one on each end. Each ball has a bezel-set gem, and unlike other barbells, they look forward, as if they were eyes. It's a perfect barbell for the nipple piercing. 

A distinctive feature of this barbell is that only one ball can be unscrewed, so it's not possible to replace them. The reason is that this way, the gems always look in the same direction. If both balls were unscrewed, we wouldn't be able to guarantee that they look in the same direction, and as a result, we wouldn't have a perfect barbell.