The height of the main body and band can be adjusted to fit your body type. 【Supports Correct Posture】This product is developed based on ergonomics. By cultivating the habit of good posture, it helps to correct swayback, slouching, and rounded shoulders, leading to an ideal and beautiful posture while saving you the trouble of going to stretch or chiropractic sessions. 【OK for Correction While Doing Other Things】Start with 10-15 minutes at first, and gradually increase the wearing time as your body gets used to it. Body types vary, so adjust the wearing time to suit your situation. 【Adjustable Holding Force】You can adjust the support to your preferred level of correction and tightness. The included illustrated instructions make it easy for anyone to wear this supporter. 21-46-30