Features: Made of natural wood, light and durable. It is odorless and safe for kids. Our kits make it easy for teachers and parents to provide kids with super fun and creative- learning activities! This jigsaw puzzle model is composed of many pieces. It is a small challenge to complete the whole model suite. A detailed description of each assembly step is attached, which is easy to understand and follow. This model uses a deceleration motor as the power supply, and two AA-batteries are used for power supply (batteries are not included in package). When the battery box switch is pressed, the power supply is connected and the deceleration motor starts to rotate. The two shafts of the deceleration motor are connected to the wheels, and the two wheels start to rotate. This car moves forward under the rotation of the wheels. A very good educational toy can help children develop their thinking creativity, hands-on ability, patience and attention. It can also be a family game. When you do puzzles together, it can strengthen the relationship between children and parents. This wooden puzzle is especially suitable for people who like DIY puzzle crafts. This is an excellent gift for children/teenagers/adults/boys/girls/friends-/families. Specifications: Material: Wooden Size: Approx.16x8x12.3cm/6.30x3.15x4.84inch Package Includes: 1x Kids Robot Making Kit- note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.