Amazon 现有 ChiFit 背部拉伸器 可当背垫使用，矫正坐姿 ，现价$13.59(原价$29.99)。
订单满$25美国境内免运费，Prime会员免费两日速递。
- 推荐理由：背部拱形担架采用高度可调的设计，3档曲线高度设置，可以依照自己需求选择来伸展背部，缓解压力，一次用不超过20分钟，每天可使用2-3次，可以缓解背部、腰部、脊柱、椎间盘突出、坐骨神经痛、脊柱侧弯的疼痛，如果是久坐加上坐姿不良可以试试看，也可以放在椅子上当背垫使用，矫正坐姿，保持抬头挺胸另附按摩滚轮，运动完后可以按摩放松哦～~
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