An Ear Saver is a small, easy-to-print adapter that improves the fit of surgical and N95 masks, and makes them more comfortable for long-term wear. The hooks let the wearer use a mask of almost any size. They also remove pressure from the ears of the wearer, which can cause discomfort and eventually damage.
Sweetie, vaccines are mushrooming, hence, vendors need to clear their stocks as the end of this pandemic is near. This is a simple real life example of demand vs scarcity.