This little Knot Buster® roller ball can help relieve muscle soreness and stiffness. The massage ball rolls on your clothes and skin and it saves your hands and fingers from fatigue. This tool simulates the therapist’s deep tissue elbow massage technique. Massage therapists love adding essential oils to this tool. Small and portable so you can bring it anywhere! Check out our book “Happy Muscles” to help identify muscle knots/trigger points our tools can help with.