*for"4Pc/Set":Because each brand(For exampleXiaomi,Huawei,I live.OPPO)There will be different charging port designs.So when you install the charging cable on the productUsage results of the section"Red Arrow"It's not going to be different."Product size error"Or"Product Damage"If you are interested in the differences in this sectionPlease do not buy if you still buy and ask for a refund because you are interested in the difference.This order will be the reason we refuse to refund.Thank you for your understanding!