Prevent hunchback and reduce back pain! Relieves back pain, relieves chest hump, neck and back pain caused by long-term work and looking at cell phone and computer. Unlike the wearable posture corrector, our Yoga Humpback Posture Corrector won't choke your shoulders, won't make you sweat, and will produce great results if you keep using it for 10-20 minutes a day. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.