ELEGO TRADING 3D Arts & Crafts Drawing 3D Printing Doodle Printer Pen with FREE 30G ABS Filament(Gray) The 3D Pen for freehand drawing of 3D objects 0.4 mm Nozzle and Uses ABS 1.75mm ABS/PLA Material Ergonomic design for optimum handling,Adjustable output speed, Durability In many paint colors: filament is changed easily by pressing a button LED indicator to check the operating temperature