glow in dark, asolutely round shape, accurate diameter(2 ... , easily shape when printing, shining surface, bright color;4. PLA filament has small shrinkage even when printing big ... guranteed.2kg/roll, 1kg/roll PLA filament 3mm/1.75mm glow-in-dark ,black,white, transparent, blue, red , yellow, ... and so forth in assorted diameters since 2009. Esun glow in dark PVA PLA ABS filament welding rod for 3D ...