Original XYZ Printing Junior mini 3D filament spools for da Vinci Junior, da Vinci Nano and da Vinci Mini. These products are protected by a RFID chip, so they works seamlessly with these machine. The Junior Mini filament comes on spools of 600g for 3D printing many different objects. Your XYZ Printing 3D printer will report the amount of filament left on spool and when it is running low on 3D filament.