From the manufacturer of the original PhysioRoll comes an improved design with the same burst-resistant material found in our premium FitBALLŪ exercise ball. Unique dual-ball design lets therapists work with their patients while both are seated on the ball.  A critical tool in every therapy and fitness facility. Manufactured by the makers of the Gymnic Therapy Ball, the PhysioRoll offers greater stability by limiting movement to forward and backward. The unique design allows a therapist and client to share the PhysioRoll. Or, patients can sit in the center cradle for maximum comfort and support. Color coded for easy use.  Available in four sizes: Blue (30cm), Red (40cm), Yellow (55cm) and Blue (70cm).