Features: brand new and high quality Correct hunchback and extend shoulders. 2 hours a day. First week: adaptation period, do not tighten too much, let the spine get used to it. Second week: adaptation period, according to the bearing capacity and body shape, increase the strength, sit upright and adjust. Third week: Continue to wear, after insisting on wearing, form a good habit Correct the hunchback with chest and correct bad posture. High quality material, breathable mesh, lightweight, soft, breathable and comfortable. Suitable for workers, teenagers, house wife and other people who have bad seating walking habits. 1 posture correction belt only, other accessories demo in the picture are not included! Specification: Item Type: Posture Correction Belt Material: Cotton Fiber+Spandex Gender: Unisex Color: Black, White Size: XS/S/for M/L/XL(Chinese Size,follow the size chart to select please) Size:XSRecommended Height:100cm-140cm(39.37inch-55.11inch)Recommended Weight:12.5kg-27.5kg Size:SRecommended Height:125cm-165cm(49.21inch-64.96inch)Recommended Weight:27.5kg-47.5kg Size:MRecommended Height:150cm-175cm(59.05inch-68.89inch)Recommended Weight:47.5kg-65kg Size:LRecommended Height:160cm-185cm(62.99inch-72.83inch)Recommended Weight:65kg-75kg Size:XLRecommended Height:165cm-190cm(64.96inch-74.80inch)Recommended Weight:75kg-95kg Quantity: 1 pc Warm prompt: 1.Asian people size is 1 or 2 sizes smaller than European and American. 2.Please note that low temperature washed,do not bleach and place under the blazing for sun for quite a long for time. 3.As different measuring methods,it will occur 1-3 for cm deviation about the items,please ensure that it is okay for you before ordering. 4.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding! Package includes: 1 x Posture Correction Belt(without retail package)