These are the best quality readers that I have been able to find
These are the best quality readers that I have been able to find.  Much better manufacture than those from chain pharmacies.  And certainly much better than Costco.  Excellent price point.  My only push-back is the unnecessary zippered case, which I just throw away.  I would recommend that these could be offered 3 for $20 without the fancy 'retail' case.  However, I strongly recommend these.
Rating: 5 stars