The Sacro Wedgy Male System helps to stabilize the sacrum, allowing the pelvic girdle to relax and return to its normal position of balance. This in turn helps to eliminate symptoms such as pain or numbness radiating down the legs and tightness and pain in the hip area. This version is specially shaped to fit a man’s body. The sacrum is the keystone of your anatomy – the part upon which the spine and most of your weight rests – our center of gravity. When an arch is built, as in construction, the last stone in the arch to go in place is the keystone or wedge-shaped stone. If this wedge is for some reason pulled out of place, the arch will collapse. The sciatic nerve and other nerves extend from the sacrum to all parts of the lower extremities.