Do you suffer from pain or tension in your muscles? Whether you need to recover from muscle soreness after a challenging workout or stiffness after sitting on a long flight, the Yoga Tune Up Alpha Therapy Ball can help you massage and relax sore muscles at home or on the go. The Alpha Ball is 3.5” in diameter, making it big enough to work major muscle groups and small enough to throw in your suitcase for relief at the end of a long travel day. Use the Alpha Therapy Ball to massage your chest, shoulders, scapula, lower back, hips, and more. Simply place the ball between your problem area and the wall or floor and roll over and around your muscles for instant relief. The dense inner core is firm enough to work out any knots in your muscles, yet the soft top layer makes this ball comfortable against your skin and on sore pressure points.