Miraculous tools are special tools that come with Miraculouses. Whenever a Miraculous holder transforms, they possess a tool specific to whichever Miraculous they have.
Each tool is a different object, like Ladybug's yo-yo and Cat Noir's staff. Usually, the tool is a size that can easily be carried by hand, and some tools can be worn when they aren't in use, such as Ladybug wrapping her yo-yo around her hips.
Many of the tools are used as weapons, being handy for offense and defense. Some of them are capable as means of transportation, as Ladybug can swing from place to place with her yo-yo and Cat Noir can vault himself with his staff. Tools can also have technological features to them, including a phone, a GPS, and a search engine.
For some Miraculous holders, they need the tool to use their superpowers. For example, Ladybug tosses the yo-yo into the air whenever she utilizes Lucky Charm.