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In the youtube video below I explain what the different quality grades are. I will list the best to worse below.
1:1 or Mirror Image closets to the real thing you will get
5a cheaper in cost than a 1:1 but might have 1 or 2 small differences usually not that noticeable
4a most of the stuff I have is 4a. Still can be great quality. Logos might be right or might not all depends
3a usually made of PU which is fake leather. I try and stay away from this