Glow Core Layered Carbon Fiber Ring Blanks CarbonWaves Premium Void Free Luxury Grade Material Listing price is for 1 individual ring blank Thickness: 3/8″ Size: Select either individual ring blanks (1.25″ x 1.25″) or (4″ x 6) slabs. Colors: Green, Blue, Fireball (white in daylight but glows red), Purple and Fire (red/red) 3 total layers- 1 center glow layer and 2 black twill carbon fiber layers Made with the brightest, most vibrant and long lasting glow resins. CarbonWaves materials are the highest quality, most unique and beautiful carbon fiber materials available to makers and artisans. Guaranteed to be void free so you don’t spend hours working on a piece only to find an unsightly void right where it doesn’t need to be. One side has a glossy finish and the other side is a matte finish. Developed and made by hand in The Netherlands.