Good compatibility: Our PLA filament can be applied to all types of PLA supported 3D pens and 3D printers that require a PLA filament with a tolerance of 1.75 mm. Premium material: This PLA filament is made of vegetable raw materials, is safe, durable and can serve for a long time. A great gift for children’s crafts. Temperature range: the recommended printing temperature is 190 °C –  230 °C. Please make sure it is used within the temperature range so that it works smoothly. Wide application: the 1.75 mm PLA filament can be used for 3D pens and 3D printers. Suitable for printing directly onto the surface. Non-toxic and safe for children: Compared with ABS, PLA filament is unsuitable and safe for children. PLA is environmentally friendly, non-toxic, safe and harmless. Clog free, bubble free and easy to use: dry completely for 24 hours before packaging and vacuum seal with desiccant in a nylon re-bag. Recommended PLA filament extrusion/nozzle temperature 215-220°C.