This is dead stock from a certain zori (Japanese sandal) shop. More accurately, it's stock from a Showa-era geta (wooden clog) shop. The size is approximately 22.5 cm, measured by an amateur. It seems that it's considered stylish to wear them with your heel slightly exposed. Please consider this as a reference. Although it's new and unused, please assess the condition from the images and consider purchasing if you are satisfied.