3D printing pen is the world's first pen with 3D printing capabilities. Using PLA and ABS plastic, the 3D printing pen can "write" on any surface, and even draw directly in the air. It is compact and requires no computer or computer software support. You just plug it in and wait for a while to start your wonderful creation. If you can dance your fingers in the air, you will have a 3D printing pen without a teacher. It is based on 3D printing, extruding hot-melt plastic, then rapidly cooling in the air, and finally solidifies into a stable state. Gives you endless creativity. With just a few hours of practice, you can draw amazing gorgeous.