This Fallout Vault - Tec metal sign is a great decorative piece. You can hang it on your wall using nails or hooks. Just make sure the surface is flat and strong enough to hold it. Avoid placing it in areas with high humidity or direct sunlight, as this could damage the metal over time. To clean it, simply use a dry cloth to wipe off any dust. If there are stubborn stains, you can use a mild metal cleaner, but test it on a small, hidden area first.