HOLDER FOR HELMET, INFORMATION DISPLAY DEVICE, AND INFORMATION DISCLOSURE DEVICE

摘要

A helmet holder 10 of the present invention which is attached with a device is detachably attached to a helmet 60, characterized in that the helmet holder 60 is elastic and is attached to the helmet such that the helmet holder retains the helmet from outside in a rightward and leftward direction, in a forward and rearward direction and in an upward and downward direction.