STEM Kit #21-23
These kits all contain 3d pens though different styles and manufacturers. 3D pens are a handheld 3d printer do NOT touch the end because it is hot and 3D pens should be used 12 and older and with adult supervision.
The following is a video on how 3d Pens are helping in the medical field.
The following is a tutorial video on how to draw with 3d pens
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