ZIRO 3D Printer Filament PLA 1.75mm Glow In The Dark Color Series 1KG(2.2lbs), Dimensional Accuracy +/- 0.05mm, GID Blue

Important Tip: The glowing characteristic of this filament is: Only when it absorbs enough light first, then it will glow in darkness for a long time. You can expose it to bright lighting light(not uv light) for 15-30 mins,then take it to a dark...