What is that thing behind Enel's back?


Enel, God of Thunder, or of anything, usually has multiple copies of a thing
behind his back.

![Enel with arrow designating thing in
question](https://i.stack.imgur.com/kGuh2l.jpg)

What is that thing? Did he transplant it inside his body?




If you have a look at the [Appearance section of Enel's wiki
page](http://onepiece.wikia.com/wiki/Enel#Appearance), you can see that
(emphasis mine)

> Enel is a tall, muscular man who has white/blond hair which was, in ancient
> South American civilizations, considered godly..
>
> His nose has many lines running horizontally across it. His ear lobes are
> extremely long, ending up to his torso. **He also holds four large Tomoe
> drums attached via a large ring to his back, instead of the regular
> Skypiean/Birkan wings, which gives him an appearance similar to a Raijin, a
> similarity made even more prominent when using his "200,000,000 Volt Amaru"
> transformation.**

So they are basically just external features of his attire and not really
something which he has transplanted to his body.




If you have a look at the [Appearance section of Enel's wiki
page](http://onepiece.wikia.com/wiki/Enel#Appearance), you can see that
(emphasis mine)

> Enel is a tall, muscular man who has white/blond hair which was, in ancient
> South American civilizations, considered godly..
>
> His nose has many lines running horizontally across it. His ear lobes are
> extremely long, ending up to his torso. **He also holds four large Tomoe
> drums attached via a large ring to his back, instead of the regular
> Skypiean/Birkan wings, which gives him an appearance similar to a Raijin, a
> similarity made even more prominent when using his "200,000,000 Volt Amaru"
> transformation.**

So they are basically just external features of his attire and not really
something which he has transplanted to his body.

