The BackBaller is specifically designed to self-treat muscles in your upper lower back. Due to the stability control offered it goes beyond is now the foremost product to knead out all muscle groups. For optimum benefit follow our 20min program regularly unlock the door to your athletic potential. Features Self-treat Muscles in Your Upper Lower Back Improve Flexibility Joint Range Of Motion Accelerate Recovery From Training Increase Tissue Pliability Diminish Aches Pains Includes Exercises for: Back, Calf, Glutes, Groin, Hamstring, Lats, Quads, Shins, IT Band