glow in dark, asolutely round shape, accurate diameter( ... shrinkage even when printing big size model;5. Manufacturer supplier, strict quality control, dimensional accuracy ±0.05mm with ... 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 ...