8 SILKY COLORS: This 3D Filament Refill includes 8 Silk PLA Filament colors. Bring your 3D drawing to life in shiny, glossy colors, including, Silk Gold, Silk Pewter, Silk Red, Silk Blue, Silk Green, Silk Lime, Silk White and Silk Magenta. | 3D PEN REFILL FILAMENT SPECS: 1.75mm Filament Diameter (Dimensional Accuracy +/- 0.03mm) Recommended Extrusion Temperature: 160°C - 220°C (320°F - 428°F) 12 Feet Per Color = 96 Feet of Silk PLA Filament Includes 4 Free Finger Caps | BROAD COMPATIBILITY: The Inland 3D Pen Refill Sample Pack is compatible with most 3D Pens including, MYNT3D, PIKA3D, and SCRIB3D 3D Printing Pen. This 3D printing filament is not compatible with the 2.85mm 3Doodler Pen. | EASY-TO-USE 3D FILAMENT: Easily create 3D art with the Inland clog and bubble-free Silk PLA 3D Pen Refill Bundle. It easily molds into shape without clogging the 3D Pen Nozzle and won’t leave an oily residue on your hands. | INLAND SILK PLA FILAMENT: Designed with the highest quality and compatibility in mind. Inland PLA Filament is non-toxic and undergoes numerous testing procedures to ensure that you spend less time troubleshooting and more time creating! Your filament will arrive completely dried, and vacuum sealed to ensure a high-quality smooth print.