The product is a 250-gram spool of black 3D printer filament with a glow-in-the-dark green color. Specifically designed for 1.75mm printers, the filament is made from PLA material. This versatile product allows for creating detailed and vibrant prints with a unique black base color and green glow-in-the-dark effect, making it ideal for various 3D printing projects that require a specific color and glow-in-the-dark feature.