Mask covid save ears

thingiverse

Supplement to relieve pressure on the ears due to anticovid masks. This supplement improves the fixation of other models that tend to move towards the nape. It has two positions to better adapt to the different shapes of the head of each one. I know that it does not work for all types of head but the people who have tried it have seen how it improves the fixation of the mask to the face.