Each model is comprised of two life-size Vertebrae. The first pair shows one set with normal anatomy and one with a "bulging" herniated disc. The second set of Vertebrae shows one with bone and disc degeneration, and the 4th with advanced osteoporosis with marked bone compression and bone spurs.
Model Size: 3-1/2" " x 2-3/4" x 3"
Card Size: 8-1/4 " x 6-1/4"
Base Size: 10-5/8" x 6-1/4"