HARDEST PART IN HUMAN BODY

The most HARDEST PART in the human body????????????

In our human body most delicated part and most sensible parts more than

15 are present

But what is the hardest part compared to all the parts of the human body??????

Can anyone know

About which part?

Or

Which place?

or

Which organ?

Or

Any other in our body

Do u know which it is?

It is none other than our TOOTH ENAMEL

Because all of our body parts are mostly covered with

Atmost 2 layers to the main

But

The tooth enamel has the four layers to protect the pulp

Of the teeth inside