These are paulownia wood geta (Japanese wooden clogs) measuring 20cm in length, 7-8cm in width, and 4cm in height. My mother kept them as a decorative item at the entrance of her indoor tea room because she found them cute. They have not been worn, but there is some dullness due to age. They are from Hasegawa in Ueno Ikenohata, and I remember the owner polishing the surface with something like a hard stone. They are light and smooth.