illegal.
The NFL has banned helmet visors unless prescribed by a physician.
You cannot tackle another player with your helmet. You can in fact tackle another player leading with your helmet...the rule is that you cannot make helmet to helmet contact with another player. That being said it is unsafe to lead with your helmet in any situation due to injury probability, you risk neck and head injuries when you lead with your helmet.
50
An NFL-issue Liddell helmet.
Touchdown
Riddell-The official football helmet of the NFL
no
34 to 100
100
The Clevland Browns still do not have a logo on thir helmet
To prevent concusions in the NFL. Too many players were getting hurt.
8 pounds