The PSO-Rite is the most revolutionary self-care mobility massage and muscle release tool of our time. The psoas complex (hip flexors) are considered to be the soul of our body. They regulate our fight or flight response, support our digestive organs, regulate our breathing, and aid in pumping blood and lymph through our body. Provides immediate pain relief for anyone experiencing pain or tightness in the psoas, neck, shoulders, and spine. It's ideal for anyone with a sedentary lifestyle, desk job, or athletes with pains from straining their body to the limit. See All Photos.  On SALE Measures : Length 10.7" x 5"                     Width 5.3"                    Peak to Peak Height  6.3"