Material: PLA / Color: Graphite Gray / Thickness: 1.75 mm Spool Size: 2.25" ID / 7.75" OD / 2.25" Depth Collection: GRAY (See also Stealth, Prototype Gray, Castle Limestone, Game Cartridge, Steel, Battleship) Color also available in PETG, ABS, FlexPLA Paramount 3D filaments are made from 100% virgin PLA and vacuum sealed with desiccant. Filaments are compatible for use in all top brand 3D printers. Please search 'PARAMOUNT 3D' for more colors and filament types. FORM THE POSSIBILITIES