Features: 1kg/2.2lbs filament, 1.75mm diameter, suitable for most of FDM 3D printers. (Tolerance: 0.02mm) Made of environmentally friendly PLA, non-toxic and odorless, biodegradable and safe for use. Bright and high toughness, silk like texture. Good tensile strength, good ductility, not knot while using, convenient for use. The stable melting point is more advantageous to ensure the fluent printing process, smooth forming effect with no bubbles. Vacuum sealed with desiccants, recommended extrusion/nozzle temperature: 200-230℃(392-446℉).