Cosplay Horrortale Sans Full Head Mask/Helmet + working eye (Undertale)

I commissioned this cosplay Horrortale Sans mask for cosplay back in 2017. I wore it a few times to anime cons, but I no longer participate in those conventions, so I am now selling this prop to someone who can make better use of it. The mask is constructed of light-weight materials, so it is extremely easy to wear. The eye lights up with a battery powered mechanic inside the mask, however currently the battery needs to be replaced. The mask is rather comfortable and roomy inside, but note that it is not soft material.

Length from forehead to the back of the head: 39 CM
Ear to ear length (front along the nose): 30.48 CM
Earlobe to earlobe length (front along the chin): 30.48 CM
Head circumference above the eyebrow: 56.134 CM

Since the mask is worn by an elastic strap that goes under your chin, it is somewhat adjustable, but I suggest referring to the head measurements listed above so that you are certain this piece would fit you.

Let me know if you have any questions!