Lifefit double massage ball with a fine structure The LIFEFIT DUO massage ball is an easy-to-use tool for massaging virtually the entire body, especially smaller muscle areas. Their harder rubber surface and fine texture help with efficiency and better adhesion during massage. With its help, it is possible to exert relatively intense pressure , which brings relaxation and pain relief, supports tissue rehydration, has a positive effect on blood circulation and muscle tone. The balls are rather heavier in relation to their size and thus offer good stability. They help improve posture and neutralize muscle tension. The double ball can also be used to increase spinal mobility and release muscle plexuses (nerve knots) in the lumbar spine and hips, as well as massage sensitive areas of the neck and spine. It is recommended for those who have spent the day in a position with a load on the spine, i.e. sitting, or who complain of discopathy (disease of the intervertebral disc) and reduced strength during exercise. This great tool can be used both on the ground and against the wall. Technical description: - washable - easy to use - double massage ball - fine surface texture - to improve posture and spinal mobility - for muscle massage, stimulation, relaxation, regeneration, convalescence - dimensions: diameter 6.2 x length 12.2 cm - material: TPR