YOUSU Glow in The Dark Light Green PLA Filament, Luminous PLA 3D Printer Filament, Dimensional Accuracy +/-, 1kg(2.2lbs) Spool, Fit for Most 3D Printer
Chinese manufacturer (Guangzhou YOUSU 3D Technology) specialising in co-extrusion silk and multi-colour PLA filaments. Sells on Amazon under the YOUSU brand.