Up to S 23cm Supervised by Somatid researcher Kotaro Seno ・Terahertz ore ・Negative ion emitting ore ・Radium ore ・Somatid ore ・Far infrared ore These stones are placed inside the sandals, and the unique arrangement of the stones is designed to deliver energy to the foot's meridians and reflexes. It aligns the body's core. Blood, lymph, cerebrospinal fluid, bioelectricity, and Qi. It aims to circulate and promote the flow of these. These sandals are designed to thoroughly improve human balance. Applying the theory of single-tooth clogs, it brings the foot's skeletal structure closer to a normal state, improves balance, and strengthens the core. Also, by exercising the toes, the muscles of the soles of the feet are activated, strengthening the muscles from the feet up. Many people have expressed their satisfaction, reporting relief from lower back and knee pain.