A quality optical glass 1/2"-diameter doublet lens mounted in a chromed steel folding case.
Review by Patrick
I'm sorry, but I bought two of these and they're no good. This made-in-India loupe utilizes poor quality optics, which are (mis)aligned using a single wide spring wrapped around the main barrel, and provides a too-narrow depth and width of field. The two I received varied a great deal in their ability to focus, and I can only use one of them for anything practical. I'm certain that the wonderful homesciencetools can find and offer a real loupe for not much more cost.
[HST adds: We're sorry to hear of your dissatisfaction. Remember we have a 90-day money-back guarantee. Customer Service will contact you.]
Review by John Feesey
solid steel,heavy, fairly well made.Very small field of view,difficult to use.It does the job though.