Ipeson 3d Printer Pen for 3d Drawing Scribbler Printing and Doodling with LCD Screen with 6 pack PLA 3D filament length 32.8ft/color (Blue) This 3D printing pen is with LCD screen , and together with 6pcs 32.8ft/color length PLA filament. Scribbler 3D Pen replaces ink with plastic which melts at a high temperature which is used to draw in the air or on a surface to create 3D objects.Melted Plastic cools down very fast which makes the whole process safe. With Scribbler 3D Pen you can easily control extrusion speed, temperature and choose the plastic filament. Scribbler 3D pen weighs just 2.3 Oz which is huge improvement compared to other brands. Scribbler 3D printing pen is perfect for kids and adults, it is fun no matter what. Scribbler 3D pen comes with 3 loops of plastic filament to get you started! Improved function: Double-clik the forward or backward button, 3d pen filament will be auto moving forth or back, you don't need press the button when it is working.