The exercise ball is a great alternative to exercise for any age and fitness level. Countless physical therapists and personal trainers use it to strengthen and tone the muscles and bones of the hips, back, legs, hands, arms and shoulders. This yoga ball is made of strong anti-burst material and is a great way to keep your body in good shape. A popular exercise item in most gyms, we now offer you the opportunity to practice with a yoga ball at your own home.