Using your HO scale brass Chicago Surface Lines MU Car is easy. Just connect it to an analog DC power source and watch it run smoothly. When handling the car, be gentle as it's a fragile item. For maintenance, keep it in a dry place to prevent any further tarnish. Check the wheels regularly for any signs of excessive wear. If you notice any noise from the motor or gearbox, it might need a bit of lubrication. Always use the original box and foam for storage to protect it from damage. When shipping, rely on our bullet - proof packing, but if you need to move it yourself, follow the same careful packing principles. And remember, if you're not satisfied, you can return it within 30 days for a full refund.