Features: This lumbar spine models are for demonstrating different stage intervertebral disc herniation, varying degrees of lumbar spine lesions. Removable parts, easy to observe. This anatomical lumbar vertebra model is perfect for the lumbar vertebra diseases study, medical research and clinical settings. A professional anatomy teaching presentation model for medical lecture report. Designed to replicate and show the real anatomical structure of pathological lumbar disc. Used to demonstrate the pathological change of lumbar spine and lumbar disc protrusion. Made from quality PVC material, good durability, corrosion resistant, lightweight, and has high strength, not easy to fade and deform. Non-smelly, non toxic, reusable. Widely used for hospital, doctors office, anatomy classroom, advanced student and clinicians, laboratories, school medical presentation, and scientific reaserch institutes, educational purposes only. Specifications: Material: PVC Size: Approx. 26.7x15.5x9cm/10.51x6.1x3.54in Color: As Picture Shown Weight: Approx. 800g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set Human Lumbar Spine Models Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.