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The 4th generation 3D Pen （LOW-TEMP） is the new 3D printing pen which uses FDM 3D printingtechnology, and with the help of a built-in fan in the pen, the printed product is almost instantly cooled. The 4th generation 3D Pen with automatic power failure protection function has high safety performance, the surface temperature of the system is lower than that of similar products, so the 3D printing pen will be better protect the child's safety when printing by using 3D printing pen for kids. 
The 3D pen has simple structure there are only 3 buttons in 3D pen, so kids can easy to understand how to use it. The product has a humanized design and comfortable grip fit on kids hold. Whether feed discharging or print process of 3D printer filament are smooth and the use of the material will not break when printing. 

Flythinking 4th generation 3D Pen（LOW-TEMP）:
(1) It conforms to human body engineering principle and make you feel comfortable
(2) Automatic power failure protection function
(3) The temperature of the pen is within acceptable range when using
(4) Simple structure with 3 buttons,easy to operate
(5) The printing process is quiet and noiseless
(6) Easy to feed and return the material,one-hand operation,adjustable speed
(7) With special ceramic nozzle,safe for use