Toddler Avenger crocs

These use to be my sons favorite .. still in really good condition! They are a size 9 but they are not true to size .. all my experience with croc sandals is you need to go down a size my son fit these when he was in a 10-10.5 in regular shoes .. I only have ONE pair but put multiple to put 2 different shoe size for what it’s actual size is and what I believe it would fit best .. also it does have a scrap mark on the top of one .. see picture .. open to offers