Burgundy heeled string high

cute burgundy heels that you can tie up your leg I have NO idea what size these are except 37. according to Google, that a 5/5.5 but if they were, they would fit so I'm thinking they are a size 6. I absolutely LOVE these heels and hate to part with them, but hopefully someone can pit them to use other than me. they have been just sitting in my closet for gosh knows how long.