This plastic replica includes the entire vertebral column with nerves, vertebral artery, a movable base of the skull, and the pelvis. It is flexibly mounted on a stand, which makes it ideal for demonstration of vertebral articulation and chiropractic manipulation For demonstration purposes, we also offer a set of vertebrae that consists of first and second cervical vertebrae, and one each of cervical, thoracic, and lumbar vertebrae, for a total of five parts. These vertebrae are strung on nylon. 34 in. tall.