Features : The model consists of 1.5 times the fourth and fifth lumbar and lumbar disc spinal nerves. The disc uses a soft material to promote the display of lumbar disc herniation. It shows what happens to the waist when the body bends. The model is widely used and has a good auxiliary teaching and demonstration role. : 1. Show the damage mechanism of lumbar disc herniation. 2. While showing curved vertebrae disc herniation 3. Display changes in body bending and distortion 4. This model can be used to illustrate the importance of peoples spine and spine movements. 5. The model is a model for aiding teaching of good educational tools. 6. The model consists of two tissues with flexible discs spinal cord and nerve vertebrae. Specification : Material: PVC Scaling Ratio: 1:1.5 includes: 1x Spine Model