[Hight Quality PLA]- The black 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. Allowing 3d printing enthusiasts to create stunning works with fewer issues. [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. Spool diameter: 7.99inch, spool width: 2.48inch, hub hole diameter: 2.36inch. Suggested printing settings, nozzle: 190-220C, bed: 50-60C, speed: 30-90 mm/s. [Fits For Almost All