Excelvan Wood 3D Printer Printing Filament for Print RepRap MarkerBot 1kg/2.2lbs (3.0mm) Specification:Tolerance: +/-0.02mm / Print temperature: 190-220&#176;C (374-428&#176;F) / Bubble: No bubble 100 percent / Net weight: 1kg/spool / Gross weight: 1.3kg/spool Diameter Tolerances: Our filament quality is very good with tolerances only: +/-0.02mm. Our Wood filaments DO NOT have air bubbles. Material: Wood is a new FDM filament that was developed to print wooden-like objects. Suitable for high precision 3D models printing. Compatible with all FDM 3D printer such as Makerbot, Mendel, Prusa, Huxley, BFB series, RepRap, Rapman, Solidoodle etc.