From Monty Python and the Holy Grail:
This royal helmet will not let you cut down a tree with a herring. However, it is made of lightweight fiberglass and painted to have an antique steel finish.
The crown is real polished brass with a lightweight brass comail (chain mail skirting) attached.
Completes the King Arthur costume.
Fits up to a 23 inch head
Interior circumference: 58 cm
Inside the helmet is an adjustable padded cloth lining.