The Yoga Studio 7\" and 9\" Exercise Ball can add some variety to your yoga, Pilates or exercise programme. It can be of particular benefit when working on pelvic floor or core strength areas. The Yoga Studio 7\" and 9\" Exercise Ball can also be used by those recovering from injury or illness. Ideal for pelvic floor exercises, the ball will enhance your workout and help develop strength, endurance and concentration as well as to help promote relaxation and coordination. The balls are anti-slip offering excellent grip. Ball size is down to personal preference although it is common to have both sizes for greater diversity. Latex free material. Features. Allows you to isolate and work specific muscle groups. Can be used for Pilates, yoga and physical rehabilitation. Is ideal for performing pelvic floor exercises. Various sizes are available for diversity throughout your workout. Offers you excellent non-slip grip. Comes with blow straw and two stoppers