Purchased two years ago for 3,280 yen. I was about 140cm tall at the time, but I hardly used it. Please refer to the photos after photo 2 for the condition of the product. Extracted from the following net: Size: L: Height 130-160cm Weight 35-50kg Waist 50-80cm Chest 60-90cm Color: Blue Product Features: [For posture correction] Poor posture tends to accumulate fat in the abdomen, leading to stiff shoulders and lower back pain, as well as a poor appearance. The ergonomically designed posture correction belt opens the shoulders and straightens the back, improving the image and creating an attractive posture. [Achieve an ideal body with correct posture] We gradually lose our correct posture in daily life due to gravity and weakening muscles. The posture correction supporter naturally leads to a correct posture with a straight back. Along with improving poor posture, it also relieves stiff necks and shoulders, and improves all aspects of health, such as preventing nearsightedness. [Easy to use] Made of mesh material, improving breathability and comfort. Uses Velcro, making it easy to put on and take off, and can be freely adjusted to fit your body shape and desired tightness. Unisex, can be worn by adults and children. [Target users] Recommended for those who are concerned about poor posture, those who are concerned about the distortion of their shoulders and body, those who have stiff shoulders and lower back pain, those who spend a lot of time on computers and smartphones, those who spend a lot of time driving, and those who want to maintain a beautiful posture. How to wear: 1) After putting the side straps over both shoulders, fasten the waist belt slightly above the abdomen. 2) Pull the correction straps attached to the waist belt and adjust to your desired level of correction. 3) Press the correction straps against the waist belt at the appropriate correction force position. 4) Once you have secured the left and right correction straps to the waist belt, you are done. If it becomes uncomfortable, adjust with the correction straps. Note: Do not use during sleep, sports, or meals.