Should be zero stars. I ordered masks on April 9th, have not received them and the tracking has said "Shanghai, delivered to air transport" Since April 19th. When you click "contact us", nothing happens. I have sent an email thru PayPal and one thru my Pharma Depot account with no response. There is a big red bar on their website that says USPS Priority available 4-7 days. Don't believe it and do not order from them.