Pen 3D digital printer

WARNING1: Suitable age: Age 5 +. Children Below 5 years-old should be guided by parents.2: No nozzle touch when pen is under working status, as temp could reach 50-60℃. 3: Avoid any hard objects for nozzle safety.4: Only 1.75mm ABS or PLA 3d filament compatible for the pen5: Do not use the filament provided by other supplier, make sure its' tolerance within 0.02mm.6: Keep the pen away from water.7: Please plug off the AC adapter, and upload the filament after using. 8: Keep the pen in a safe place, where the children can not reach.