 The ear guards are each attached by three rivets, the top and bottom of which help hold the diadem and decorative plate, respectively, to the head piece; the edges of the diadem and plate are folded over the iron core for additional support.The face mask hangs from the head piece by a central hinge, and would be fastened with straps connecting a loop under each ear with corresponding holes in the neck guard.The entire helmet, the iron core of which is between 1 and 6 millimetres thick, weighs , of which the face mask comprises .