glow in dark, asolutely round shape, accurate diameter(2. ... guranteed.2kg/roll, 1kg/roll PLA filament 3mm/1.75mm glow-in-dark ,black,white, transparent, blue, red , yellow, ... popular in the 3D printer like RepRap, Makerbot, Mendel, Huxley UP! Printers, Thing-o-matic , Ultimaker and so forth in ... assorted diameters since 2009. Esun glow in dark PVA PLA ABS filament welding rod for 3D ...