... it glows green in dark! It's perfect for haunted houses, radioactive bunnies, or ceiling star constellationsCharacteristic ... strict quality control, dimensional accuracy ±0.05mm with laser monitor and interlock device, smooth surface, no bumps, ... stable melting point,which is popular in the 3D printer like RepRap, Makerbot, Mendel, Huxley UP! Printers, ... PVA PLA ABS filament welding rod for 3D printer