OPTP Franklin Smooth Ball Set - Adjustable Firmness Massage Roller Ball Set for Back and Neck Massage - Gentle Deep Muscle Massage for Sensitive Soft Tissue ReliefBrand: OPTP Color: Orange Features: Neck and Shoulder Massage Ball: For neck and back pain, trigger therapy or gentle shoulder massage; the smooth surface provides deep muscle penetration without aggravating soft tissue. Franklin Smooth Ball Set: Created for Franklin Method exercise, which combines movement with mindfulness techniques. Use for fascia release and proprioception training by gently tapping the body or rolling different areas of the body