Feature： 1. A GIFT FOR THE WHOLE FAMILY:Create, Draw, Doodle, and Build in 3D with this affordable yet high grade 3D pen. The 3D Pen helps improve spatial thinking, creativity and artistic skills. Great for quality family time and as a practical tool for making handmade gifts or decorations, or for everyday fixes around the home. The Pen features a stepless speed function designed for optimal speed control no matter the task - whether slower intricate projects or faster infill work. 2. BEGINNER FRIENDLY:Plug the adapter into the back of the pen and choose your filament. The red light will turn on indicating warm up, this will take about 2-3 mins. Double click the forward button to start and feed the filament through the back of the pen. Once the filament has reached the nozzle of the pen, click forward to stop. Press and hold the forward button or double click for a continous flow. Once you have completed your design, press and hold the reverse button to retract filament. 3. MULTI-FUNCTIONAL：The Pen is temperature adjustable to accommodate multiple types of filament: PLA (160-210℃, 320-410°F) or ABS (210-235℃, 410-455°F). Unlike other 3D printing pens, it has an easy-to-use stepless speed slider, designed for optimal speed adjustment. Perfect for any task, from slow & intricate projects to faster infill work. Specification： Adapter:100-240V 12V2A Nozze:0.7mm Diameter Paingts: ABS/PLA Plastic Feeding:1.75mm Diameter Product size: 18*3*3cm/7.09*1.18*1.18inch