PSO-BACK®CLOSEOUT ITEM!! ALL SALES FINAL!! NO EXCHANGES OR RETURNS ON THIS ITEM!! Losing the natural curvature of the spine spells disaster for anyone. The Pso Back uses hard nodes mimicking a therapists' thumb in combination with a gentle curve, which allows you to release muscular tension, decompress, and stretch the spine providing relief for pinched nerves, herniated discs, and spinal stenosis. The Pso Back can provide relief first thing in the morning if