Using this HO scale brass model set is a breeze. Just take the models out of the box and place them on your model train track. Since there are no couplers, you can choose to add your own if you want to connect them to other trains. As for the box, it's a great way to store the models when you're not using them. When it comes to maintenance, because the models are brass and have minimal tarnish, you can use a soft, dry cloth to gently wipe them every now and then to keep them looking good. Avoid using any harsh chemicals or abrasive materials as they could damage the models. When packing the models back in the box, make sure they're placed in the foam insert properly to prevent any movement during storage. And remember, these models are fragile, so handle them with care.