This copy of a Viking-Norman helmet is handmade of steel, based on an original of around 900 AD.
It fits every head up to a size of 62 cm / 24.4" (helmet inner liner size).
Width: 18 cm / 7.1" (ear to ear)
Inner length: 21 cm / 8.2"
Weight: 1.3 kg / 2.9 lbs