?Safety and energy-saving?With scientific heat conduction structure, the temperature of 3D printing pen's shell is significantly lower than similar products to avoid scald. For safety and energy-saving, the 3D printing pen will automatically retract the filament after approximately 10 minutes of not being used. ?Adjustable 10 speed settings ?Fast speed is available for plane painting and slow speed is fit for three dimensional painting. Two modes for your option -- click the button to automaticly discharge and long press to manual discharge. ?Latest technology and optimized design?Using the latest technology and optimized design, the filament is heated through pen body and discharge smoothly with no clog when create 3D objects. ?Easy for kids to hold?Being designed ergonomicly with beautiful color, the 3D pen will be easy for kids to hold and be attractive to their attention. ?Perfect gift ?IDRAWING 3D printing pen is perfect gift for children and helps improve their spatial thinking ability and encourages their creative imaginations.