1, the key kidney organ for men and women with iron hip, combines three methods: iron hip exercise, rejuvenation acupoint aphrodisiac and soaking kidney for health preservation. It adopts modern scientific magnetic resonance imaging, digital electronic technology, far-infrared technology and acupoint vibration massage, simulates the ancient "iron crotch" method, automatically exercises and stimulates kidney potential, and integrates physical fitness, health preservation and aphrodisiac.