Miu Miu Ballet Heels Satin

I am a size 5 US and this is their smallest size and it fits my friend who is a 5.5. Received it for Christmas 2023 and NEVER WORN! Still with dust bag but I am keeping the box for my other heels. If unsure about size go to miu miu and try on their size 35US - their heels are always slightly bigger. But if I wore socks with these ballet heels it's not too bad