The 3Doodler Flow, the latest 3D printing pen from the creators of the world's first and best 3D Pen.Build and draw 3D structures, freehand or on stencils, with extruded heated plastic that hardens almost instantly! This kit includes everything you need to get started, including 8 different colors of plastic spools (80 ft. in total) and a comprehensive activity guidebook to teach you the basics.The 3Doodler Flow is also compact and lightweight, so you can take your Flow on-the-go!