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: 3-3/4 " x 3" x 3-1/8"
Card Size: 3-3/4 " x 3" x 3-1/8"
Base Size: 10-1/2" x 6-1/4" x 1"

1. Made of durable high quality materials.
2. 100% Satisfaction Guaranteed!!! (Model must be returned within 30 days.)
3. Custom Models also available!
4. Education card included with model.