I found out this week I have a torn retina in my left eye and will be having surgery on Thursday, 8/10/17. As a result, I'm not certain when I will be able to ship orders placed in the next several days. You should see a banner with this announcement at the top of each page. But if not, what it says is that basically I expect to be unable to ship from about 8/10 to about 8/15.
I apologize for any inconvenience. You can place orders, of course, but there will be a slight delay in shipping.