It prevents chest sagging and humpback, Wearing this can improve bad posture on the back and improve self confidence.Straighten your shoulders and back, pull shoulders back to align clavicle.Get the correct posture and let your head, spine, neck and collar bones naturally aligned.Posture Corrector: This scaffold is designed for scoliosis, kyphosis, low back pain and many other posture problems,It alerts you with vibrations when you are in a bad posture. You will develop muscle memory if you wear our posture corrector for a period of time. It means that even without the trainer device you will stay straight in the future. Be more confident in your lifeLIGHTWEIGHT DESIGN:The beautiful and lightweight design make it can be worn on your clothes at work or daily life inconspicuously. We recommend it for those who have humpback, sore shoulder, uncomfortable waist caused by long sitting at the desk. It is also a good choice for your children to keep good posture and health habit.GOOD GIFT CHOICE:The universal size posture corrector can not only fit men and women,but also fit kids. It fits back spine, helps vertebra get back, pulls shoulders backward, prevent and improve humpback.Packageinclude: 1x Posture CorrectorNote:1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures.2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm)Thanks for your support :)