Spectrum PLA Silk Rainbow is based on Spectrum's PLA Silk. The silky-smooth appearance of this filament in combination with the special color gradient ensure that your prints always have a unique look. You print this filament with high precision and stability. This makes this filament perfect for making decorative items such as jewelry, gadgets or artistic decorations. This filament is 1.75 mm, has 1 kg on the spool and has the color composition Fire Red.