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Environmentally friendly luminous fluorescent supplies: the 3D PLA pen prints without odour, smoke, non-toxic and respectful with the environment. It is the safest option for children’s crafts and adult art. Better option than SPS, ABS material
Ultra-smooth filament 3D mechanical pencil filament is made of high-quality material that is always round, without oily residue or breaks. It can produce bright lines and colours without bubbles.
Wide compatibility 1.75 mm filament – universally compatible with most 1.75 mm 3D pens and printers (strength +/- 0.05 mm). Please make sure that your 3D pen or printer with 1.75 mm diameter of 1.75 mm PLA filament refills can be used.

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Safer & more environmentally friendly: made of PLA high-quality materials, which are odourless, non-toxic, bubble-free and not easy to deform, safer for children.
【Wide Compatibility】Compatible with most 1.75mm 3D pens on the market. The measurement accuracy is +/- 0.02 mm. throughput speeds.