The 3Doodler Start+ is a special pen that lets you draw in 3D. Bring your ideas to life and literally draw in the air! This pen is specially designed for children. You insert a colored stick into the back of the device. Liquid plastic comes out the other end, allowing you to design 3D figures. This liquid plastic uses a material that melts at a very low temperature, making the 3Doodler Start+ safe for children. A fully charged 3Doodler lasts between 40 and 60 minutes. Those who want to continue working with the 3Doodler can do so using the included USB cable, which connects to the pen. In addition to the 3D Pen with USB charger, this set also includes 72 different colored sticks (in 8 colors) and the Design Book with many cool designs! The 3Doodler Start is designed for children who love to draw, craft, design, and build. This unique 3D pen stimulates creativity and promotes spatial awareness. The built-in battery is a rechargeable 3.7V, 900mAh, 3.33Wh Li-Po battery. Package dimensions: 19x7x22cm (LxDxH). Recommended age: 6 years and older.