- About this item 【Warm Tips】In the initial stage of use, if you feel uncomfortable due to posture correction, you can start from half an hour a day and gradually increase the use time. Allow 1-3 weeks to adapt to the […] 
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About this item 【Warm Tips】In the initial stage of use, if you feel uncomfortable due to posture correction, you can start from half an hour a day and gradually increase the use time. Allow 1-3 weeks to adapt to the […]