[15% Colorful Carbon Fiber PLA]-The military green CF-PLA offers more color choices to you. It contains 15% carbon fiber, which features high rigidity and strength than standard PLA. Excellent printability: no odor, no warp, clog-free, and bubble-free. Allowing 3D printing enthusiasts to create stunning works with fewer issues. [Neatly Wound and Tangle-free]-Our ZIRO filaments uses full mechanical wire winding to avoid tangles and knots during printing. Completely drying for 24hrs before vacuum sealing. Moisture-free and bubble-free to make 3D printing much easier. (Please remember to store the filament with the re-sealable bag after use to keep it dry) [1.75MM Filament Accuracy ]- Advanced CCD diameter measuring control the dimensional accuracy of the PLA is +/- 0.03mm. The strict tolerance guarantees that ZIRO filament printing is easier and more stable. 0.4mm hardened nozzle is recommended for best results. Suggested printing settings, nozzle: 200-220C, bed: 50-60C, speed: 3