Specifications: length 40cm * Diameter 15cm, each box 12, box size 60 * 45 * 40cm, support for mixed batch. ... generally divided into soft tissue, nerve root type, vertebral artery, sympathetic, spinal cord-type of five. Different types, treatment methods ... stenosis, severe disc herniation, cervical instability, spinal cord-type cervical spondylosis and reset the absolute prohibition of gravity massage ...