The back strecher board is made of high-quality ABS, not easy to deform or break, can withstand up to 275 lbs, light weight, easy to carry and store. Efficient for postural therapy, back pain relief, better circulation, deep sleep and improved mobility. Ergonomically designed with tree level and can be adjust manually within the range of 0°-60°, When your back feels stiff,sore and tense, adjust the lower back stretcher to your comfortable height, lie flat on the spine board and feel the energy of acupuncture, relieve the stiff back, correct the spine curve, and promote blood circulation, 10 minutes a day, relieves back pain and muscle soreness after work fatigue. The massage chiroboard silicone pads provides more acupuncture experience on your back - giving you more access to the acupuncture points on your back stretcher. In daily life, the spine stretcher can also be used as a cushion for office chairs and car seat cushions.