Impressive Luminous PLA Filament: Geeetech glow in the dark filament expands your capabilities of creating cool prints. Print as usual, then expose your model to sunlight or UV light for 30 minutes and bring it back to a dark room. A cool glowing model is done Awesome Gift for Your Family: This unique 3D printing filament brightly glows in the dark, bringing lots of fun to your 3D prints for printing glow sticks, figurines, decorations for room, party, Thanksgiving and Christmas Easy to Use and Less Tangle: Like regular PLA, Geeetech glow in the dark PLA filament is also easy to print. Full automatic spooling and strict manual examination to make sure neat wiring and no tangle Accurate and Consistent Dimension: Advanced CCD diameter measuring in the production process guarantee these PLA filaments of 1.75 mm diameter, Accuracy +/- 0.02 mm; 1 kg spool (2.2lbs) Professional R&D Experience: With over 12 years' 3D filaments experience, we come here with a professional research and development technology, strict quality control patent system and large-scale production capacity for all 3D printing enthusiasts Compatible with Most 3D Printers: This 1.75mm glow in the dark PLA filament fits most standard FDM 3D printers, ensuring broad compatibility for your printing needs Purple Glow in the Dark Color: Features a vibrant purple color that transforms into a luminous glow when exposed to light sources, creating stunning visual effects in darkness GEEETECH Glow in The Dark PLA Purple Filament