Product Details + FAT Carbon Materials "Dark Matter" Marbled Carbon Fiber Color: Carbon Fiber w/ Green Resin Sizes Available: ( /- 0.1") 1 3/8" x 1 3/8" 3" x 6.25" 4.1" x 6.25" 6" x 6.25" 6.25" x 19" Made with carbon fiber and epoxy Price is per piece. Heat cured for long term stability and durability. FAT Carbon Materials makes some of the most unique and high quality carbon fiber materials available for makers and artisans.