iPhone 11 Pro Max Back Housing Replacement Silver White Grade B please read

Good condition,  100% Tested and fully working PLEASE CHECK THE PICTURE there is a graving int eh back but the housing OEM 100% You will receive an item in pictured in this listing.  Warning:   This part requires professional repair skills to install. Please contact me if you have any questions. Here are concise and clear descriptions for each grade : Grade A: Impeccable condition, free from scratches or blemishes, resembling a brand-new item. Grade AB: Minimal imperfections, barely noticeable scratches visible only under direct light. Grade B: Visible scratches or deeper marks present, still functional but with noticeable wear. Grade C: Multiple noticeable scratches or deep blemishes, indicating significant wea