Purchased on Amazon for ¥1,636. I received two, so I no longer need this one. Worn once. Product Description: The secret lies in the single tooth on the sole. Just standing engages core training. Feeling a lack of exercise due to working from home and staying in? Starting to notice fat around the stomach and hips? Now you can do core training at home using geta (Japanese wooden clogs), just like professional athletes! Simply stand on the single tooth of the sole to target deep muscles and improve core strength. Increase your basal metabolism and aim for a body that's easier to lose weight.