Features This model is very close to the real state of the human body structure. The product is lightweight and practical for teaching and demonstration. This model is often used in orthopaedics, surgery, clinical lessons, prevention of occupational diseases, ergonomics, physical education, etc. It has a good auxiliary teaching and demonstration function. This model consists of the fourth and fifth lumbar vertebrae with 1.5x magnification and the spinal nerve of the intervertebral disc. The intervertebral disc is made of soft elastomer, which is convenient for users to demonstrate. The herniated disc model shows what happens to the distribution of human intervertebral discs when the human body bends and curls. Specification: Material: plastic. Scale: 1:1.5 Weight: 306 g Package list: 1 x human herniated disc model. Note: Actual product colour may vary from the photo due to lighting conditions. There may be slight deviations in the measurement of the product. Package List