Using this HO scale brass Union Pacific business car model is easy. Just take it out of the box carefully and place it on your model train track. You can add the diaphragm if you want, just follow the general model - building practices. When handling, hold it gently as it's a fragile item. Keep it away from sharp objects to avoid scratches. For maintenance, use a soft, dry cloth to dust it regularly. If there's a bit of tarnish, you can use a mild brass cleaner, but test it on a small, hidden area first. Store it in a cool, dry place, preferably in the original box to protect it from dust and damage.