Nothing to write home about...
Typical ho-hum mail-order company. Over a week later, customer service which does not answer any phone calls, decided to return my inquiry by email. No conversation. By that time it didn't matter. I will look to see if any other company sells the exact same masks. If not, I won't need more for many months. In the end the product arrived intact. But for a nickel less I would gladly buy elsewhere.