1. Glow in the Dark ABS FilamentABS Filament Contains phosphorescent materials that glow in the dark after absorbing light energy. Enjoy different printing fun with Glow ABS. To enhance the glowing effect, expose your print to full sunlight or UV light for some time. 2. Stable Dimensional ToleranceMinimum tolerance and low warping to ensure consistent feeding and stable prints, good layer bonding, less stringing, no bubbles, no cracking, easy handling, resulting in an outstanding surface finish, and are precise. Diameter 1.75mm, dimensional accuracy / 0.03 mm. 3. CompatibilityStrong and durable ABS filament is engineering thermoplastic. Suitable for printing parts with higher heat resistance requirements, such as industrial machinery parts, model machinery, electronic appliances, and instrumentation. ABS Filament Compatible with Most of Enclosed FDM 3D Printers. 4. Recommended Print ParametersNozzle: 240˚C 250˚C; Bed: 90˚C 100˚C; Speed: 30mm/s 50mm/s; Bed Surface: PEI sheet with ABS glue; Cooling Fan: LOW for better surface quality, OFF for better strength.