Question about fat barbells
 

Im lookin to pack on as much as i can on my bench, iv already looked into chains but i heard fat barbells help too, dose anyone know if they help and why?
Thanks for the help

Have you ever heard about Brooks Kubik?

I think they would hurt and help certain things. Bench press for example...I can lift more with a smaller diameter barbell. Which would help to build my chest more. A bigger barbell might help more with forearms... I might be on the right track...I hate the bigger diameter barbells though personally.