Review (3/5): Glow kinda sucks
They don't glow without "charging" them with light, and even then, the glow kinda sucks. As far as barbells go, they serve their purpose. They are plastic and flexible, so if you are a biter, you might want to be careful. Because they are plastic, they are also nice to wear before xrays and stuff so I don't have to remove my piercing.