The glasses do what they initially intended, it protects the eyes and in the simplest way. The glasses are not ungeeingnet customizable and for eyeglass wearers. For me personally it goes well and also I find very pleasant, as it is very light and hardly noticeable. For activities with a simple protection, such as protection against splashes during decanting of cleaning them is excellent.
Who but full Protects when working, for example with metal looking, I recommend he prefers a slightly higher quality model with all-round protection around the eye. I think whoever saves in protecting the eyes, saves on the wrong end.
In summary, a simple model for simple protection, two stars deduction, because the surface is not sufficiently sealed and quickly gets scratches.