A 100mm (4"), 2X handheld magnifier glass has large field of view and sufficient magnification for comfortable reading of books and as a visual aid for art and antiques; only $4.50.
Although it only has 2 times magnification, this hand magnifier may be all you really need for reading if you have otherwise normal vision. You can also use it for burning paper or dried leaves since the diameter of the lens is proportional to the amount of sunlight it can focus.
Is that really free shipping you're getting? Read the full review where a customer says she saved 45% over Amazon! (you’ll have to scroll down a bit to see it):
"Laura Sudweeks 1 review 7 months ago
Ordered 100 magnifying glasses for a marketing project. First I started on Amazon, but they only allowed me to order 10 at a time. That was a waste of my time and a complete pain. Some of the orders were cancelled because they couldn't …More"