Glasses fit my head and strength was as expected. Materials are somewhat flimsy so not sure how they will hold up over the long run. Good for the price I paid.For the price they are good. Nice case comes with it. Some distortion in the lenses but not deal breaker for the low price. Seems to be sturdy. I was looking for a simple pair of black aviators that were inexpensive since I drop/scratch/break/lose my sunglasses all the time. These are exactly what I need, and at a price that allows me to buy replacements when I need to. Only thing I don’t like is that cheap products are made by underpaid labor 🙁 Would rather pay even double the price for these if it would help.