REAL METAL COLORS - Gold, Silver, Bronze, Copper PREMIUM QUALITY - The PLA raw material is made in the USA (NatureWorks) and features excellent layer-to-layer bonding COMPACT SIZE - 0.5 kg PLA material with 1.75 mm diameter, Spool diameter: 16.5 cm, Spool thickness: 5.2 cm, Inner hole diameter: 5.0 cm