This is a neck piece for the thread of the mask. It causes the threads of the mask not to touch your ears and not to hurt you. 

This already exists and its a improvement more elastic and comty. This solves a physical problem.

This contraption improves the flexibility and comfort of the one that is already created, in addition, is more comfortable.

It will be used by many people, all those people who notice pain in the ears by the strings of the mask and are already tired.