Size 36, so it's about 23 cm. I bought these for commuting, but since I work in a place where I take my shoes off, they weren't as easy to remove as I expected, so I'm going to sell them. The silhouette goes with anything and I think they're cute. I've only worn them twice and there are no noticeable scratches, but there are some minor scuffs due to the suede-like material.