Vertically 1–1.5 cun
Zhubin KID-9's main function is to tonify Kidney Yin, thus it is able to treat symptoms such as back pain, dizziness, tinnitus, night sweating and dry throat.
Kidney Yin Deficiency may also lead to emotional or mental issues such as anxiety, insomnia, palpitations or manic behavior. KID-9 has a powerful calming effect on the Mind as it tonifies Kidney Yin.
Finally, it opens the chest by removing Obstructions and regulating the Yin Linking Vessel.