This anatomy model is a great purchase for children and adults alike. The 4D Vision T -Rex model contains a full skeleton structure that is half painted in realistic colors and half transparent to show the skeleton and organs. The finished model is placed on a well-built stand to be viewed for educational enjoyment for years to come. Details: Tyrannosaurus rex anatomy 22" assembled model length 41 pieces For ages 8 and up Contents: 39 fully detachable organs and body parts Display platform Illustrated guidebook