Description [Ready-to-use kit] includes 30 colors (90 meters) of PLA plastic, allowing you to do graffiti for a long time, and a USB data cable (without adapter). Just plug it in, heat it up, and enjoy the fun of creating a 3D masterpiece. PLA is a versatile and easy-to-use printed plastic, very suitable for beginners and advanced users.[Easy to use 3D pen] Insert the adapter into the back of the pen and select your filament. The red light is on to indicate warm-up, which takes about 2-3 minutes. Double-click the forward button to start and feed the filament through the back of the pen. Once the filament reaches the nozzle of the pen, click Forward to stop. Press and hold the forward button or double-click to flow continuously. After completing the design, press and hold the reverse button to retract the filament.[Multi-function] Our 3D printing pen can adjust the temperature to adapt to many types of filaments: PLA (160-210C, 320-410F) or ABS (210-235C, 410-455F) . Unlike other 3D printing pens, we have an easy-to-use stepless speed slider designed to optimize speed adjustments. Suitable for any task, from slow and complex projects to faster filling jobs.[Safe and risk-free purchase] This 3D printer pen ceramic nozzle and high-quality motor ensure safety and high performance without clogging. Equipped with automatic sleep function for 2 minutes after 3D graffiti stops, anti-blocking function and active control to ensure a seamless graffiti experience.[Best Gift] Use this affordable but high-quality 3D pen to create, draw, doodle and build in 3D. The pen has a stepless speed regulation function, no matter it is a slower complex project or a faster filling work, the best speed control can be achieved. This 3D printing pen is an excellent gift for children, which can help them improve their spatial thinking ability, cultivate creativity, imagination and artistic skills, and turn their ideas into reality.