Why use? Children’s long-term use of electronic equipment leads to chest hunched back. Long-term incorrect sitting posture leads to myopia. Hump-backed affects children’s healthy and learning. Feature: Help to prevent hunchback, prevent myopia, relieve pain and develop a good body posture.Strong support for back, shoulder, clavicle. Effective for back problems such as poor posture, slouching posture, backaches, neck and shoulder pain. Specifications: Condition: Brand and New Item Type: Posture Correction Belt Gender: Unisex Material:Polyester Color: Pink,Blue,Gray blue（Please note: due to different light and environment, the color of the picture is slightly deviated.） Optional Size: S, M, L Package content: 1 x Posture Corrector *Ps: The size of this correction belt is slightly small, if you have any questions, you can concult us, or the teenagers could choose the adult size.