SOFGYM OVER is the same ball as OVERBALL, only equipped with a short plug , so that the ball is not damaged from the inside during exercise. It is used in rehabilitation and in various exercise classes. A number of strengthening, stretching and balancing exercises can be performed with the OVERBALL. Exercise with OVERBALLY is usually a compensatory exercise of a slower nature aimed at eliminating faulty posture and muscle imbalance of the body. Exercising with OVERBALLY engages the deep stabilizing muscle system - especially the muscles of the back, neck, abdomen and pelvic floor. OVERBALL helps to properly strengthen the body and improve its posture. It is also used as a balance pad on a chair or driver's seat. Supplied with short plug and inflatable straw. Packed in a plastic bag with instructions.