Human Anatomical Lumbar Disc Herniation Model - Lumbar Spine Model for Teaching Learning - Excellent Way for Demonstrating Disc ??Durable material?: PVC material, safe and durable, easy to clean, longer life. ??Realistic model? : The model shows the damage mechanism of lumbar disc herniation. It demonstrates how the intervertebral discs protrude when the vertebrae are bent, and reproduces what happens to the human vertebrae in real life when the body is bent or curled. ??Exquisite model? : It is composed of the fourth and fifth lumbar vertebrae magnified by 1.5 times, and the lumbar intervertebral disc spinal nerve. ??Multiple uses? : Suitable for school, hospital teaching and learning. ??Excellet Customer Service?: We offer 7x24 Hours Customer Services. If you have Any Questions, please Feel Free to Contact Us. We will Provide You with Timely and Efficient After-Sale Service.