The Halos ring features a matte finish uni carbon fiber prepreg body with machined edge that has been filament wound in a machined pocket before it receives a final polish. This divisions of the ring (light and dark halos) is where the name Halos comes from. Essentially you are looking at the same carbon fiber running at 0 and 90 degrees. It's interesting how much impact fiber direction and surface finish has on the color contrast in the Halos. The inner and outer edges are rounded for your comfort. Each prepreg carbon fiber ring is oven cured under high pressure to produce a laminate that has extremely low void content so you can be sure the fiber isn't just aerospace grade but our process is as well. You won't find this ring in your local mall jewelry store;) Each ring is handcrafted in the USA. This ring is made to order and usually takes 2-3 weeks to ship.