This small exercise ball is perfect for barre classes, pilates mat classes, and yoga classes so you can get in shape in complete comfort. Helps to get in shape and sculpt the upper body. Crunches and other ab exercises can also be performed. It helps to get six pack abs. These balls are also used to aid pregnant women in delivery. Perfect for Balance, Core Strength, Yoga, Fitness in Home, Gym or as a Desk Chairs to correct your posture and support your Back in Office.