* For "4pc/Set" :Because Each Brand (Such As Xiaomi, Huawei, Vivo, Oppo) Will Have A Different Charging Cable Port Design, So When You Attach The Charging Cable To The Product, The Effect Of Using The "Red Arrow" Part Is Also Will Be Different, Not "Product Size Error" Or "Product Damage", If You Mind The Difference Of This Part, Please Don't Buy If You Still Buy And Apply For A Refund Because You Think About The Difference, This Statement Will Also Be A Reason For Us To Refuse The Refund, Thank You For Understanding!