This comfortable mask is designed to stretch completely over the head of your sub
The part of the eyes are thicker then the rest of the mask, giving your sub no vision and awakening other senses.
The thin lightweight fabric allows for an easy breathing and good hearing.
One size should fit all. It is made out of super soft material.
It is also the easiest glory hole to set up: take the mask on, get on your knees wait to serve the dicks..