Core Carbon RingsCORE CARBON RINGS - Handmade Ring Band - Men's or Women's Purple and Blue Glow Ring, Matte Finish, Glow-in-the-Dark, Durable, Scratch Resistant, Waterproof, Sizes 4-16, Custom Band Widths

*Update* - Well two years later & I am still wearing my glow rings every day. They still look amazingly new & clearly are durable or I would've broken at least one by now. One thing I have noticed is the glow works far better in the summer compared to the winter.I purchased the purple & blue style & i absolutely love this ring!!!! It is incredibly lightweight yet still seems quite durable. Very smooth feel & has zero pinch to it. Let’s not forget the glow, sooo amazing in the full dark, even glows nicely when it’s jus slightly dark out. Holds its glow longer then any other “glo-n-dark” product I’ve come across(I have many:})