CCbetter Intelligent 3D Pen 3D Printing Pen with safety holder free filament Color Green(Version III) 100% Upgraded 3D new generation pen, More high resistance and durable materials, insure high quality result Convenient and responsive element of adjustment, settings and functions smooth speed for a better work flow Portable, Super lightweight bring it anywhere, anytime. Easy to operate and comfortable in your hands with safety mounting nozzle holder. Easy Melting point monitoring with the support of digital LCD screen display, this pen is compatible with PLA/ABS material Friendly and fast customer service, passed the quality check with 1 year warranty