ROBO 3D ABS 3D Printer Filament, 1 kg Spool, 1.75mm, +/- 0.05mm, Black 1 KG (approximately 2.20 lbs) Spool 1.75mm Filament Diameter (Dimensional Accuracy +/- 0.05mm) ABS (acrylonitrile, butadiene and styrene) 3D Printer Filament Vacuumed Sealed With Desiccant Universally compatible with most 3D printers using 1.75mm diameter filament.