An excellent, low-cost teaching model showing all three lumbar vertebrae complete with a section of spinal cord and lateral nerve endings. The cutaway view of each of the three vertebrae shows a different level of osteoporosis. The severed vertebrae shows the result-a crushed disk. A durable full-color teaching card identifying the major anatomical structures is included and makes an outstanding teaching aid. When not in use, the model with its colorful teaching card will look beautiful in your classroom display cabinet. Model size is 6cm x 9cm x 10cm.