Made from PVC material, Strong and Solid. The spine model shows in great detail all the main features of each spine, including the spine, nerve root, vertebral artery, intervertebral disc, spine transverse and spine facet, chiropractic, orthopedic and other medical The ideal teaching model is also an ideal model for corporate health care. Key features include: spine, pelvis, sacrum, occipital, vertebral artery, nerve artery, lumbar intervertebral disc and lumbar disc herniation.