Features: 1. This 3D printing pen is made of high-quality materials, not easy to deform and break, and can be reused. Durable. 2. Use this 3D pen to create, paint, doodle and build in 3D. Helps to improve spatial thinking, creativity and artistic skills. 3. Wide range of uses: very suitable for enjoying high-quality family time, and also a practical tool for making handmade gifts or decorations or for daily decoration at home. 4. Small and portable, easy to carry. It can be put in a bag or pocket when going out, so that children can paint anytime and anywhere. 5. This interesting 3D printing pen is an excellent holiday gift for children on special holidays such as Christmas, Children's Day, and birthdays. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Reusable plastic Size: 18.5*3.5 cm Rated voltage: DC3.7V Power supply mode: built-in 3.7V lithium battery includes: 1 set x 3D Printing Pen