[Fluorescence- luminous ONLY by UV Light ]-The ZIRO fluorescence PLA contains premium glow powders and can emit fantastic light in the dark after absorbing UV light energy. We suggest exposing your works under UV light for 30 minutes for an excellent glow effect. [Hight Quality PLA]- ZIRO PLA filament is made of premium raw material with excellent printability: good ductility, higher strength, no odor, no warp, clog-free, and bubble-free. Full mechanical wire winding to avoid tangles and knots during printing. Completely drying for 24hrs before vacuum seal. Allowing 3d printing enthusiasts to create stunning works much easier. [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: 190-220C, bed: 50-60C, speed: 30-90 mm/s. [Fits For Almost All FDM Printers]- ZIRO 3D printing filament works pe