Educational wire
Suitable for education, simple and easy to use.

 
There are materials with different properties, such as: weather resistance, chemical resistance, light transmission...etc.
 
 
Small package of 30g, if it is used for 3D printing pen,
It is recommended to choose PLA-U, which is a material extracted from corn starch, which is safe and environmentally friendly;
It can also be used as an experience package before purchasing 1kg wire.