Deep Tissue Trigger Point Therapy: The massage balls are perfect for acupressure point relief, providing excellent deep tissue massage for pain relief and muscle knot relief for sore and tired muscles, effectively relaxing muscles or hard to reach areas, relieving muscle stiffness, and soothing fatigue. Non-toxic high quality rubber: Our lacrosse ball are made of high grade non-toxic TPR material for durability. The two different bumps provide deep massage relief for back, shoulder, hand, foot, leg, hip, neck and other areas of pain. Yoga Massage Ball Set: A set of quality therapy balls for self myofascial release and trigger point massage therapy, they are similar in size to lacrosse balls and can be used for relief of nerve compression pain in the lower back, herniated disc pain and nerve compression pain in the neck. Can also be used as a soothing hand massage. Easy to use: Use your own weight and gravity to relieve muscle lumps and tension. Great for use against a wall, sitting in a chair, lying in bed or on a yoga mat. You can use it while walking, traveling, in the office, at school, watching TV, or any other time. Lacrosse ball massage is also easy to carry with the attached bag, so it is convenient to use at any time. Suitable for everyone: Yoga ball helps to relax muscle tissue, reduce soreness and fatigue, and improve flexibility. It is a self-massage tool to aid in rehabilitation and muscle recovery and is suitable for use by practically everyone, especially athletes, fitness instructors and office workers.