1、The safe 3D pencil - principle of work on the training of bristles, temperature extruder is 40 °C-50 °C, without echauder the children while watering, but also ensures that our children achieve their full creativity safely in the environment. 2、Sensor - The indicator light turns off automatically depending on the severity of the pen when the pen is entered horizontally and protects from the eyes of the children. 3、Durable: forget to prevent the nozzle made of plastic technology - premium quality - with mesh filter. Adjustable to 5 positions, encouraging children to become their own master. 4、Lightweight and portable: the 3D pen is only 18 cm with a 12 cm ink cartridge, offers children the opportunity to paint and their unlimited creativity. 5、Certified to CE, FCC, RoHS, provides extra safety for our children to live lovingly and have fun with joy and safe.