SAVFY Intelligent 3D Printing Pen, 3D Drawing Model Making Arts & Crafts Drawing with 3 Free ABS Filament, Stimulate Childrens' Creativity, Improve Spatial Thinking Ability - Blue 3D Pen for freehand drawing of 3D objects. It can be used to draw in the air or on the surface and tracking objects on paper. lightweight and slim design, easy to handle, comfortable to use. Meet the needs of children , students and adults. Intelligent standby- functional design.When the user operates the midway break or forget to turn off the power , the product will automatically be converted to standby mode after 5 minutes Good heat dissipation design, better to avoid overheating and causing skin injury. Suitable for painting workers, product designers, hobbyists, children, students, creative person, etc.