PSO-RITE is the ultimate full body self massage tool and psoas muscle release tool with patented technology. It allows you to get into tight muscles, muscle knots, trigger points, and all forms of myofascial release. No other massage tool is like PSO-RITE. With its patented design, PSO-RITE is built to mimic the hands and elbows of a massage therapist which means you're able to get an on demand deep tissue massage on your psoas, back, shoulders, neck, hips, legs, arms, feet and MORE.