<b>Creativity, safety and environmental protection</b> <br> Our styles are made with a focus on quality, creative and interesting.<br> The 3D wooden puzzle model is challenging, it integrates the beauty of machinery and scientific exploration,which advocates science and technology,creativity and energy conservation.<br><br> It is creative 3D wooden puzzle designed for adults and teenager.<br> Not only is it fully functional, but it also has a ton of vintage charm.<br> It can provides hours of fun while combining basic learning skills with coordination and organizational skill.<br><br> <b>Unique Design:Indoor and outdoor dual-use</b> <br> Indoor: Connect the wire of motor with the battery case, 2 pcs of AA battery requested. (not included ).<br> Outdoor: Connect the wire of motor with solar panel, the solar panel can turn the sun's light into electrical power for its motor.<br><br> <b>Warm Tips</b> <br> 1.The 3D wooden model kit is designed for kids up 6 years old. This building kit contains small parts that are not suitable for kids under the age of 3.<br> 2. Keep away from fire and heat sources, away from babies and young children.<br> 3.Do not approach the gear with your hands during operation.<br><br> <b>We Can Do</b> <br> Lifetime Support Provided<br> If for any reason you are unhappy with any product by AngelUS, please do not hesitate to contact us.<br>