1.75mm Glow PLA Filament Glow in Dark PLA Filament Contains phosphorescent materials that glow in the dark after absorbing light energy. The glowing effect will be stronger under Sun light or UV light source after 30 miniutes,Enjoy different printing fun with Yousu 3D Glow in Dark PLA filament. Problem Free PLA FilamentOur 3D Printer Filament no warping, no jamming, no blobs or layer delamination issues. it's a Problem-Free glow PLA filament which has great bed adhesion, very consistent color ,The advanced diameter measurement process in manufacturing ensures that these PLA filaments of 1.75 mm diameter, dimensional accuracy + / - 0.02 mm.Minimum tolerance and low warping to ensure consistent feeding and precise prints,without worrying about printing issues. Tangle free & High compatibility - Total length is 330-340m,1kg 3D Printer filament spool,No tangle winding filament and compatible with the most FDM 3D printers, feed smoothly and constantly without clogging the n