How Do They Do It?

Season 9 Episode 11: Leather Footballs, Mussels

How do they craft footballs for the National Football League? How do they farm mussels? How do they design the ultimate fighter pilot's helmet?

Genre:

Documentary

Seasons:

17

Episodes:

287

Quality:

HD

Status:

Returning Series

First Air:

2006

IMDb:

7.6