NWT Roberto Cavallo Pool Black/Gold Sandals fits size 5 to 6 women

NWT Roberto Cavalli Black/Gold Sandals fits size 6 women Says size EUR 35 and CHN 37. But I wear a size women’s US 6 and it fits. Box will come with it but it’s not the original size, box is for the size 8 On another website size says it’s equivalent to size 5