Collection of biomechanics, human body engineering and other high-tech research results. Through scientific nets coordination able, firm and soft force, make the human body neck, shoulder, back, waist, abdomen, shape banding facade, powerful help children and ladies maintain the right posture to sit, stand and walk. It's the best choice for children and ladies' humpback. Features: 1. Supporting design helps ease pain and correct poor posture. 2. Strategically placed magnets target the spine and lumbar region. 3. Lightweight design which is easy to wear, and un-noticeable beneath clothing. 4. You are able to wear it through-out your day-to-day life. 5. Fully adjustable, comfortable & easy to wear. 6. it will gently pull back the shoulders, the neck and head are straightened while aligning the spine. Note: 1.Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid. 2.The colors may have different as the difference display, please understand.