$15 for shooting glasses? 
These are not expensive, so buy 1 pair and test at home, just shooting them with nail gun or BB gun. 
If glasses survives then you will be sure your eyes are protected.
I stopped using “Amazon Cheap Glasses” after one of ANSI Z87 rated broke on me, hit by 9mm ricochet from steel at 25 yards….
Somehow ANSI Z87 rated (tested), scratch resistant and anti fog glasses costs close to $100… so do you really believe that $15 worth plastic glasses can protect your eyes?
I’m not saying you should go with OAKLEY or WILEY X (around $200), but forget about safety using cheap stuff. These are cheap because nobody spent a penny for reliable testing. 