The two main parts are the battery and the tank, which are attached to each other at the base through screws, making it easy to remove them without destroying the vape itself. I am very happy to use the Elf bar 600 Disposable Vape, because I know that I have a reliable vape that is always ready for me to use every time. The vape is getting easier and easier to figure out, but I am always willing to learn how to make it better.