Feature: 1. This wireless 3D printing pen is perfect for children, artists and engineers of all ages. 2. It is very meaningful to allow children to create their favorite patterns freely and enhance their creativity and imagination. 3. This wireless 3D printing pen can do graffiti at will, suitable for enhancing your child's imitating ability and drawing ability. 4. The pen tip is designed with low temperature, so it can paint on the skin without being hot or sticking to your hands. 5. Improve kids' independent hands on ability, release children's creation instincts, give full play to their imagination, and draw whatever they want. Specification: Item Type: 3D Printing Pen Material: ABS, Electronic Components Battery: 3.7V Lithium Battery (Shipped with Built in Battery) Battery Capacity: 500mAh Package List: 1 x 3D Painting Pen 10 x 3 Dimensional Paper Film 3 x Consumables 1 x Transparent Copy Board 1 x Cleaning Needle 1 x Charging Cable Note: The battery is not replaceable and can be charged by USB.