DescriptionEnabling you to see your thoughts and concepts engineered into a real and rewarding reality. The 3D pen filaments are universally designed and compatible with 3D printing pen using. The 3D pen filament is simple to install and easy to use, bring much convenience to you.Features- Color: Random color. - Material:Plastic. - Size: 500.00X0.10X0.10cm/7196.50X0.04X0.04inch. - Great artwork starts with excellent filament refills, 3D pen filament is super smooth. - It is made of premium material, durable and safe, excellent and great, serving for long time. - It compatible for almost all 3D printing pens in the market. The outstanding performance enables you to make completely different world through your creative skills. - 3D printing filament can attract baby's attention, reasonably stimulate the development of eyes and brain, and develop the three-dimensional space of your baby. - Professional filament refills not just for children playing. It will keep your craft art work for long time without fading.