Features: 【Premium material High accuracy】Glow in the dark white filament made of premium PLA raw material, advanced CCD diameter measuring and self-adaptive control system in the manufacturing process, dimensional accuracy is 1.75mm+/- 0.02mm, easy to print without clogging. Spool is 1KG(2.2lbs). 【Good Luminous Effect】 Exposed under the sunlight only 30 minutes will get better luminous effect, too long exposure time will damage the phosphoresent materials. 【Toughness for High-quality Printing】Premium PLA filaments have the advantages of incredible ease of printing optimized printing quality, high purity with low shrinkage and superb layer bonding, meeting your demands for printing projects of functional parts with higher toughness. 【Compatible with 99% FDM 3D Printer】Glow in the dark filament 1.75mm works perfectly on 99% FDM 3D printers, because most DIY printers use 1.75mm in size. Recommended printing temp/nozzle temperature: 190-225℃, base plate temperature: 60C. 【Less Tangle and Easy to Use】Full mechanical winding and strict manual examination, to make sure the line tidy and less-tangle, so as to avoid possible snap and line breaking; Larger spool inner diameter design makes feeding smoother.