The positive thing is that they are cheap, costing about 1 euro, but they are not really worth even 0.1€ when you need at least 1 per week. I bought 7 glasses in total in two orders and 4 pairs broke within 2 weeks. Essentially, every 4-5 days a pair breaks because the plastic of the frame is very poor quality. I will not buy again even though after the first order I thought I just got a bad batch. The previous brand I had lasted 2.5 years at a cost of about 12 euros.

For occasional use that I need them, they are perfect. I don't need to wear them all the time yet, so for small tasks and using tools or my phone, they are fine, without the fear of paying a lot if they break. I bought 4-5 to have one everywhere...