Features: 1kg/2.2lbs filament, 1.75mm diameter, suitable for most FDM 3D printers. (Tolerance: 0.02mm) Made of high quality TPU, which is soft and elastic, with high strength, good toughness and wear resistance. Good tensile strength, good ductility, row neatly without tangle, convenient and enough 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: 205-230℃(401-446℉).