Effective & Best GiftThe waist back stretcher is made of high quality ABS plastic, withstand voltage, compact. The posture corrector portable design can be placed in a suitcase. The back support is designed to make you easily, safe, comfortable, deliberately stretch back. Massager is small, lightweight, equipped with Acsergery multi-stage back stretching devices, can help you relax and immediately alleviate the back pain caused by muscle tension, excessive buckling and spine . 88 Massage ProtrusionsBack stretcher for Lower is equipped with Acsergery 88 massage protrusions, corresponding to your body acupuncture points, massage your lumbar vertebrae when stretching. Back massage lumbar stretcher helps relieve chronic back pain, back stretcher posture corrector imbalance, restore back natural bending . 3 Different LevelsBack stretcher for Lower can adjust three different levels to relieve back pain. You can massage twice a day, resting down for five minutes every time. Back board can reduce back pain, improve posture, increase back movement and flexibility. You can use a back stretcher while sitting, it can help you correct sitting posture and massage lumbar vertebrae. Back support can improve the flexibility of shoulders and back muscles . Science DesignBack posture corrector massager with Acsergery a soft rubber pad stitching, which can reduce the waist impact, and providing better protection for the waist. The back stretcher with Acsergery multi-level adjustment arch design, increasing the contact area. Back stretching device is the best gift for family and friends . Easy to carryMagic Back Stretcher Lumbar Support can be used to sit down or Lying down. Lower back stretcher let your waist return to normal 26-degree birth curve. The weight of the spine board is light, and can be carried when traveling, or stretch board can be used at home and the office .