Metal box (Fallout: New Vegas)

A metal box is a container $$ Metal boxes are used for the storage of various items.

Gameplay
Metal boxes can be found virtually everywhere. Items found in metal boxes are mostly random junk. However, some items such as keys, ammunition, notes or quest-specific items will be found in the same metal box or container. They are known to respawn their contents, and thus may not be safe to store items.