New without box thong sandal Birkenstock!!!

New without box thong sandals from Birkenstock. I have never worn these as they do not fit me right. They are white. There is a black discoloration from the buckle on the thong part itself but it can be wiped away. On the inside of the left shoe there is a slight nude coloration on the white part of the sandal (pictured). This happened when I was transporting them from NY to SC. feel free to leave questions!