1. PLA is a heat-sensitive hard plastic.

2. It is a kind of derivative of renewable resource (starch), so it is degradable, very safe and eco-friendly.

3. It's good printing characteristics makes the printed works have good hardness and strength.

4. The cost is low. In the natural state, it is generally transparent. After being added different colors, the printed works tend to have bright light, good glossiness, and almost haven't shrinkage.

5. It is suitable to both 1.75mm 3D pens and 3D printers.