For effective training: unlike an exercise ball, a balance cushion takes up hardly any space. Nevertheless, balance is trained and the back can be strengthened through a variety of exercises. Start your home workout today and strengthen your back and abdomen. The desired instability can increase the effectiveness of your exercises. Can also be used as a seat cushion: This product can also provide relief when used as a seat cushion. If you sit a lot, use this balance cushion to create a sitting surface that encourages you to make micro-movements and thus activate your muscles.