Features: High-Quality Material: This sitting posture corrector is made of high-quality material, which is lightweight, durable and not easily damageds, and can be used for a long time. Flexible: Does not affect chest and back movement. You can wear it in your daily life, in the office, at home or while walking to improve your posture. Intelligent Angle Sensing: This sitting posture corrector is equipped with a sensor. If the hunchback bends more than 25 Degree, the correction belt will vibrate to remind you immediately. It is wirelessly designed and easy to use. Ergonomic: This sitting posture corrector has a collar, which is ergonomic, stable to wear and not easy to fall off. It is lightweight and compact in design, making it comfortable to wear. As a gift: You can give this anti-hump strap to your children or friends. Help them develop good back posture. Notice: *Actual color may be slightly different from the image due to different light effect *Please allow 1-3cm deviation due to manual measurement Description: Material: silicone Size: 34.6*9*1.3cm Product Accessories: host, manual, USB cable Package List: 1 x Sitting Posture Corrector