They are stickers used normally on helmets.
Yes
a sledgehammer
Much research shows that there is no problem with have stickers on any form of helmet such as ; motor cycle helmets, bmx/shateboard helmets and any other form of crash helmets.
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They get one for each big play they are in.
no
Yes they have had good play stickers mostly you would have saw them in the early 90's
I have read in a book that the first football pads were leather helmets and that was it. No other pads but leather helmets.
I'm not quite sure what this question means. Football helmets normally do have decals and it is ok for them to have decals.
Helmets are designed to protect an football players head from a collision on the football field. With concussions be a main focus in American Football...helmets are evolving to help you remain as safe as possible when playing. Football is a contact sport and no equipment will totally protect you from injury or death. Call XO Sports....www.xosport.com to learn more about helmets.
the helmets protect them a lot