20-Piece High Precision 3D Pen Filament Refill Multicolor

Highlights

• Adopting high-purity materials instead of those waste recycled materials, these 3D pen filament refills can be used smoothly
• Model printed out has smooth surface and precise color, instead of warping edge and bubbles
• Filament refills are of high quality with good tensile strength, ductility, tenaciy and light weight