ROM Manager (Premium) is a root-only app for managing ROMs on your Android device, including creating backups and restoring them.

You can use it to manage ROMs that you have installed on your device, as well as those that you have downloaded from the Internet.

You will be able to manage the files on your device, which will allow you to determine the current status of each one, as well as create backups and restore them.

This application is not an official tool from Google.