An air-filled cushion—soft and velvety—made from high-quality foamed Ruton. The air filling can be individually adjusted using a needle valve. Ruton is odorless, very durable (up to 200 kg), and latex-free. It comes with “Sit Yourself Fit” instructions. What are the benefits of using it?A healthy, strong back and a stable core. The back is effectively and easily relieved and trained at the same time. The intervertebral discs are gently kept in motion and the muscles of the spine are trained. Upright posture can be optimized. In addition, the following effects occur during so-called sensorimotor training (interaction between the nervous and muscular systems): improvement of the nervous system, concentration, joint stability, and movement sequences in general.  How does it work?The soft material allows the ball cushion to adapt individually to your body shape, optimizing its positive effect. It enables healthy and dynamic sitting and training: minimal movements are constantly and immediately transferred to the body. This also trains the deeper back muscles and the sensorimotor system involuntarily. In contrast to sitting on rigid surfaces, these deeper muscles, which are so important for the stability of the body, are strengthened. It can also be used anywhere—at home, in the office, or when traveling—and allows you to exercise without any additional time expenditure.   Expert opinion from Dr. Sommer Gerrit, specialist in general medicine/sports medicine/chiropractic therapy/naturopathy/acupuncture, international consultant for sports medicine and proprioception:"The happyback ball cushion combines the most important features for perfect training of the back muscles through dynamic sitting. Instability through the air filling – stability through optimal individual adaptation to the body shape and training of the deep muscles through constant change of sitting position."Tip:"The happyback ball cushion is really perfect because I don't have room for a large ball. The first time you use it, all you feel is this wobbly thing beneath you. But after a short time, you get used to the new feeling and notice: something is happening to my body! I sit more upright, always balance myself out a little and feel my back muscles. The good feeling of doing something for my health is confirmed by my slowly disappearing back pain." Technical details: Size: ca. 33 cm diameterWeight: ca. 950 gMax. load: ca.200 kg - made in Germany -Trainings ChartInstructions for use

Get Fit:The new fitness ball from the happyback-series will make you fit without any compromise.A soft, velvety material combined with a resilient way to sit, create a whole new exercise experience.Make yourself fit - instructions and a double action pump are included, so you can immediately begin with your training.Available in 4 sizes. - made in Germany -

Pure relaxation! The soft foamed material improves comfort and allows theuser to sink into deep relaxation. The Relax-Nex® from the happyback-series can relieve and prevent tension in the neck and shoulder area. Whether at home on the couch, a sun lounger on a vacation or while performing exercises, your head is always perfectly embedded and floating on a velvety soft cushion of air -almost like lying on clouds.Hygienic because its washable. Includes instructions and a needle valve for individual pressure regulation.Technical Data:Size: 23,5x11 cmWeight: approx. 360 gMax. load: approx. 200 kg - made in Germany -