I bought these glasses and i repent for why i busted my money for this. The frame is so very lose and it does not grips enough.. there are not different size and they say this is a good size to fit all, trust me, if you are not a hulk.. it is no good for you to buy. In just one use the glasses formed a scratch on the glass. I only wish i had bought something else.. the onyl good thing is the material of the frame and i don't know who would want a frame only that is good but not the lens.. i am very very very extremely dissapointed and hate this product.. anyone who wants a 2 days used galsses for 10 bucks.. i am going to give it out.. i don't know someone will accept returns..