Noverlife Lumbar Back Stretcher Multi Level Upper and Lower Back Stretcher Lumbar Support for Back Pain Relief Back Stretching Massage Device for Re

How To Assemble -- Please must check the above product image 1. For each level position, pre-bend the arch board. Lay the base board and arch board on a secured mat with the wide end close to you. 2. Secure the wide end of the base board against your knees. Slide the wide end of the arch board into the single slot. 3. Press down gently and slide the narrow end of the arch board into the base board according to your desired position. How To Use 1. Sit with your back close to wide end. 2. Both hands supporting ground, slowly lie down with your knees bent. 3. Use a cushion behind the head for support and comfort. 4. Raise your arms over your head and shoulders, fully extend your arms and elbows as much close as to the floor. 5. Sit up gradually and rest for 30 seconds before standing. You should allow your blood to move back down from your head to your heart, otherwise you may feel dizzy.