I purchased these online, but the size didn't fit, so I've been storing them at home. *I did try them on. The sandals are marked as size M on the sole. I believe they are probably 23.5cm (see photo 7). *However, due to home storage, there are a few color changes on the overlapping parts of the sandal straps. They are not visible unless you lift the straps (see photos 5 and 6). Please be aware of this. RANDA Sandals Heels Heel: 7cm (measured by hand)