N/A iPhone XS Max Teal w| Heart Phone

iPhone XS Max Teal w| Heart Phone In decent condition I’m not sure what the brown is on the top right corner . My phone used to get hot and I guess it would leak something out of it ? But no matter how hard I tried cleaning it , couldn’t get it off No problems with the case whatsoever though . Just that tiny look of it in the top right Fits iPhone XS Max