3D Stereoscopic Printing Pen - For Arts + Crafts Printing, 3D Drawing + Design (Blue) It is lightweight in design and has easier speed control It has a good plug design for heater and nozzle to help control the temperature. Creative 3D pen has an intelligent standby function Create the art as the 3D pen follows your movement and command This pen replaces ink with plastic which melts at a high temperature to create a 3D object