Birkenstock Sandals with ankle strap

Birkenstock sandals with back strap. I bought these from another person on Poshmark and they did not fit me. I never wore them. I only tried them on. They are in excellent condition, they are very lightly used, and there is no wear on the tread. EU SIZE 37. Small spot on the top, I bought them like that, it is pictured in the last picture. Happy to answer any questions, make me a reasonable offer!