New, Unopened Grant E One's Hormesis School Mask (Size M). This product was made by the same manufacturer as Grant E One's, as I like hormesis. It comes with an Ion certification seal. It's large and has a face-slimming effect. It can be washed and reused, and the hormesis effect remains the same. It's soft and puts less strain on the ears. There are some areas where the cutting is a little rough (can be trimmed by the user).