The magnifier was scratched. I returned it. Three days later I looked for a new one as I was told they would be in. The only one on the shelf was the scratched one that I had returned.
I wanted this to help me read a book with small print when my eyes got tired. The problem is it is unhandy to try to balance an 8 x10 magnifier and a book at the same time. So for my purpose it doesn't work very well.