The I-Flex (Isolated flexiblilty) is a simple, light, portable device that increases flexiblity while preventing and/or rehabilitating injury. The Mohawk stretch method is featured. With a 1/8 inch steel base an a pivoting roller (180 degrees), its designed to last a career. 
While offering upper body stretching the legs are its main target. Known as the "Hamstring healer", it allows you to slide into different positions focusing on the hips, lower back and inner thigh areas. The door, wall or chair serve as your personal spotter.
Strong enough to hold 300lb plus offensive & defensive linemen, this will increase range of motion and is used for all sports. (Used extensively in ballet training)