Modern Posture Correction Device Fits the circumference of the cage 90-115 cm Abnormal body posture develops and intensifies over many years and can contribute to conditions and degeneration such as neck or shoulder pain, back pain, osteoporosis, scoliosis, shoulder sagging and slouching. The posture corrector retrains the back and shoulder muscles to adopt the correct posture. Proper posture promotes a sense of self-confidence but above all long-term stabilizes the spine and strengthens the muscles around the spine. By wearing the corrector, we learn to pull our arms back to practice aligning the symmetry of the spine muscles to improve posture. If you work in a sitting position at your desk for an extended period of time, you run the risk of deepening your posture defect, so effective muscle training is necessary to improve the overall health of your spine. Advantages of the device: is very easy to put on just put it on like a vest and then tighten the straps on the collarbone and fix it with Velcro It can be used during daily activity gradually increasing the wearing time for an increasing sense of muscle comfort.