I purchased the buy 1 get 4 free deal 2 years ago for $20. Now they want $75 for the same deal? Shameful, taking advantage of the situation with thousands of lives at stake. I will do everything I can to steer potential customers away. And the material curls up on the edges after 2 uses, and is thin as paper. Terrible product, and disgusting use of a deadly pandemic to make some money. Shame on you.