The plastic helmets were brittle when hit head on.

Electric lamps were clipped to the front of their plastic helmets.

He started to scratch his head in astonishment, but his hand was stopped by the plastic helmet.

This is the time when grown-ups in blue plastic helmets look perfectly normal on crowded city streets.

Face masks first came into vogue in football during the second half of the 1950s, after the hard-shell plastic helmet became commonplace.

Under her white plastic helmet, the American doctor's eyes twinkled.

The light source can also be bought separately for $9.95 and placed on plastic helmets from other manufacturers.

But those padded plastic helmets can only protect so much of a player's brain.

Flimsy plastic helmets offer no protection from bicycle or construction accidents.

Todd nodded as if the question had been serious and put his clear plastic helmet on his head.