Using this model is quite straightforward. Just connect it to an analog DC power source, and it will start running smoothly. When handling the model, be gentle as it's a fragile item, especially the brass parts. Avoid dropping it or applying excessive force. For maintenance, keep it in a dry and clean place to prevent further tarnishing. If you notice any loose parts, you can use the included spare parts to fix them. When shipping, rest assured that it's packed very well, but still, handle the package carefully upon arrival. If you have any issues with the product, contact us within 30 days, and we'll make it right.