[Hight Quality Silky PLA]- The red copper PLA filament is made of premium raw material, which features excellent printability: good ductility, higher strength, no odor, no warp, clog-free, and bubble-free. The smooth and shiny surface achieves a real silk feel, no extra polishing needed. Giving your 3D works a modern and luxury appearance. [Neatly Wound and Tangle-free]-Our ZIRO filament uses full mechanical wire winding to avoid tangles and knots during printing. And completely drying for 24hrs before vacuum sealed. 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. Suggested printing settings, nozzle: 190-220˚C, bed: 50-60˚C, speed: 30-90 mm/s. [Fits For Almost All FDM Printers]- ZIRO 3D printing filament works perfectly with most printers on the market. A plastic reel with a larger inner diameter design makes feeding smoother. Spool diameter: 7.99inch, spool width: 2.48inch, hub hole diameter: 2.36inch. [What You Will Get]- 2.2lbs vacuum-packed PLA filament + a free reseal bag + a 5M cleaning filament + a 5M random filament sample. And our friendly customer service. If you have any questions or suggestions, please get in touch with us. We will do our best to solve your problem.