The XYZprinting filament is extensively tested on the da Vinci & XYZware to ensure that it performs consistently to the highest standards of 3D printing XYZprinting's vividly coloured filament is engineered & tested to make sure that there is no distortion in the colour & form of the filament The XYZprinting filament has been designed to be easy to install & replace. The da Vinci will also notify you when the filament is running low so you don't run out Compatible Models: the XYZPrinting da Vinci 1.0 A/1.1 Plus/2.0 A/1.0 Ai O 3D printer Filament Diameter 1.75 mm