Zhì biān (Chinese) /Chi-ppen (Japanese)
Two differing locations:
TCM: 3 cun lateral to the sacral hiatus, level with the lower border of the 4th posterior sacral foramen
Denmei (Japanese): 3 cun lateral to the midline, at the level of the point below the 3rd sacral segment.
Point Uses: Lower back pain, sciatica, seminal emission.